J.A.P 6 Guide

FOR QUICK REFERENCE AND SPARE
PARTS ORDERING, RECORD ENGINE
NUMBER WITH PREFIXES HERE Jfr
INDUSTRIAL
ENGINES
MODELS, 412, 413, 5 A 6
TYPE I
Reference Book, Diagraffis,
Spare Parts Lists sBiP/04
61ffi
Printed by East Cheshire Pri

JD
MODE,LS
412,413,,5€d6
TYPE, 1
INDT]STRIAL
E,NGINE,S
Genera, I DescriPtion,
Running a,nd M aintenance
I nstructions with Diagrams
and Spare Pa,rts List.
',fl,

GENERAL DESCRIPTION
The crankcase is made from high-grade aluminium. It is mounted on
a rigid aluminium base rvhich forms the oil sump. In the base is fltted
a trough into which the dippcr on the end of the connecting rod dips at
each revolution. This trough is kept at constant level by oil bein[ fed
through metering holes which connect to the main sump.
The crankshaft is made of high quality steel, and is carried on taper
roller or ball bearings of large dimensions. The crankshaft and connecting-
rod assembly are very carefully balanced.
The connecting-rod is stcel with a phosphor bronze small-end bush. The
big-end is split and fitted with white metal steel backed shells.
The piston is of die cast aluminium alloy. It is fitted with compression
rings, one o{ rvhich is a special taper chrome-plated ring and must be
fitted in the top groove with the fåce marl<ed TOf uppelmost, and an
oil scraper rirq above the gudgeon pin. Drain holes åie drilled in the
bottom ring groove
The gudgeon pin is located by a circlip at each end and ls {ully floating
in the gudgeon bosses.
The cylinder is madc from close grained cast iron and is provided with
circumferr:ntial fins of special shape for cooling.
The cylinder head is made from an aluminium alloy, deeply {rnned to
assist cooling. It is detachable and fitted with a §asket-wirich forms
thc joint betrveen the cylinder ancl head.
The camshait is made from meehanite alloy, and is driven by heavy
spur gears.
'lhe pinion is rnachined from steel and meshes with the camshaft.
The inlet and exhaust,cams operate directly on the tappets. Tappet
adjustment is effected by the fitting of difierent thicknå§s discs uiråer
tappet heads. fhc whole of the cam gear is encloscrl and running in oil.
Lubrication is by JAI' pa.tcuted dipper system and is entirely automatic
and -very eihcient, _affording ample supply to all working parts. 'fhe
crankcase is- provided with the well-known ]AP vacurrru System and
crankcase release, ensuring a clean engine and economy in oil.
The th.rottle is operated by a centrifuga,l governor. A hand operated
choke,is fitted to facilitate starting when engine is cold.
A centrifugal governor is driven by a spur wheel meshing with the cam-
shlft and. operates.the throttle by simple mechanism. A slow running
and starting lever is fitted, which is operated against the governor arrn.
Peen 2
The flywheel Ian is of cast iron and is fitted directly on the cranksheft.
The cooling air is supplied by this fan, which creates a draught over tho
cylinder head and portions of the cylinder, which are correctly flnned
for this purpose. These fins should be kept clean for efficient cooling.
The cowl is designed to give a cooling draught to the necessary portiont
of the cylinder and cylinder head.
The oil filler cap on the side of the crankcase is of the screwed type.
Attached is a dipstick, having high level mark. THE DIPSTICK
tsOTTOM END INDICATES DANGER LEVEL. ALWAYS
XNBP MOVE THE
CAP WHEN THE ENGINE IS RUNNING.
The engine base must be standing level when checking or re-filling oil.
A carburetter has been specially designed for each engine. The setting of
the jets should not be interfered with except by an experienced engineer.
It is correctly set at the works, and any slight alteration may upset the
smooth running of the engine.
Jets, fi,lters, etc., may occasionally require cleaning to remove dirt or
water. This can be simply done by blowing air through them. See pages
22 to 25 for maintenance and carburetter parts list.
The damper on the governor arm is to prevent hunting by putting extra
friction on the spindle. Great care, however, must be exercised in adjust-
ing this, as too much friction will prevent the throttle opening fully.
lVhen commerclal petrol ls used, lt le advlsable to add one table-
§poon of eng,lne otl wlth one gallon of fuel. Thta should be well
mlxed.
COLD §TARTING.
(") Open petrol filter tap by turning in anti-clockwise direction.
Each filter is fitted with a tap which requires to be screwed either
fully in for OFF, or fully out for ON, to ensure leak proof operation.
(å) Slip the slow running lever into position to partly close the throttle.
(r) Push the carburetter air choke levcr to close choke for cold starting
only.
Turn engine slowly until compression is felt.
When compression is felt, give the starting handle a sharp pull in
wpwørds direction.
IMPORTANT.-Always pull starting handle up smartly to start;
do not attempt to start by continuous turniag.
When engine has started release the slow running lever.
When engine commencss to pick up speed, puli the Carburetter air
choke lever forward to open choke.
HOT STARTING.
To facilitate restarting a hot engine a release tap has been provided on the
inlet pipe. When starting difficulty occurs, open the tap and rotate the
crankshaft slowly a few times to clear the induction system of excessively
rich mixture. During this operation the throttle should be left wide open.
The air choke should be left open at all times for starting hot engines. With
the tap still open, crank engine to start in the usual manner. A{ter engine
has started and is running evenly, close the tap to prevent weakening of
the mixture.
(d)
(r)
U)
(g)
Pecn 3

(
MODEL 412 INDUSTRIAL UNIT
Engtne.-Petrol, four-stroke. Air cooled. Type, 412.
Maln Dimensions.-Bore, 64'5 millimetres. Stroke, 75 millimetres.
Cubic capacity, 245 c.c.
B.H.P.-2'4 at 2,400 R.P.M.
Valves.-Type, I\{ushroom. Position, side valve. Tappet clearancer :
EXHAUST '0l0" to '012', INLET '008".
Timing: EXHAUST OPENS 48' before bottom dead centre, CLOSES
9" after top dead centre.
INLET OPENS 17' before top dead centre, CLOSES 52'
after bottom dead centre.
Camshaft.-Type, cast in one piece, driven by spur gear.
Pieton.-Material, low expansion alloy. Number of ringe, 4. Gudgeon
pin fixing, circlips.
Connectin§, Rod.-Material, steel. Type of big endbearing, white metal,
steel backed.
Crankshaft.-Number of bearings, 2. Type, ball.
Carburetter.*Make, Zetith. Type 24 T-2.
Ignttton.-Magneto. Make, Wico. Type, A.57682. Tirning, 25" beforo
top dead centre. Drive, direct coupled. Sparking plug, size 14 milli-
metres. Gap,'025' LODGE-CN.
Lubricatlon Syetem.-J.A.P. dipper. Sump capacity' I quart.
f,'uel Tank Capaclty.-l gallon.
Fuel Consumptlon.-'8 pints per B.H.P. hour,
Engtne Wel§ht.--{2 lbs. (37 Kilogammes).
Rotatlon.-Looking at take-ofi shaft, anti-clockwise.
RECONDITIONING DIMENSIONS
Cyltnder Bore.-Diameter 2'5635' or 2'5835'.
Oversize Pietons Avallable.-+ '020'and f '040'.
Underslze Bearin§s Avatlable.-Connecting rod, l'1150" to l'1050".
RECOMMENDED CLEARANCES ON
RECONDITIONING
Clearances.-Crankshaft and connecting rod, big end, '001" to '003'.
Side clearances, connecting rod and crankshaft' '001' to '009'.
Gudgeon pin and connecting rod, small end, '0006" to '0014'.
Piston.-On diameter of piston : '0025'skirt, '0125" top land' Between
piston rings ancl grooves, '0025' to '004'. Between scraper ring and
groove, .001' to'0025".
Pecn 4
MODEL 413 INDUSTRIAL UNIT
Engine.-Petrol, four stroke. Air coolcd. 1'ype, ,t/3.
Maln Dimensions.-Bore, 70 millimetres. Stroke, 75 millimetres.
Cubic capacity, 288 c.c.
B.H.P.-3.5 at 2,400 It.P.Nt.
Valves.-Type Mushroom. Piston, side val.ve. Tappet clearances :
EXIIAUST '010" to '012" ; INI-IiT '008'. Timing: IIXHAUST
OPENS 4Bo bcfore bottom clead centre, CI-OS}iS 9" after top dead
centre. INLET Ol'IiNS 17" be{ore top dead centre, CLOSES 52'
after bottom dead centre.
Camshaft.-Type, cast in one piece, driven by spur gear.
Piston.-Material, Iow expansion alloy. Number of rings, 3. Gudgeon
pin fixing, circiips.
Connectln§ Rod.--'Material, steel. Type of big en<l bearing, whito
metal, steei backed"
Crankshaft.-Number of bearings, 2. fype, ball.
Carburetter.--1,{ake, Zcnitir. Type 24'l-2.
Ignition.--ltagneto. l'I;rl<e, Wico. Type CJ. 936. Timing, 25o before
top dead ccntre. I)rive, direct couplecl. Sparking plug, siz;e 14
millimetres. Gap,'025" I-riI)Gtt-CN.
Lubrication S-v*stem.-.J .A.I']. dipper. Sump capacity, I quart-
Fuel Tank Capacity.--l gallon.
Fuel Consumption.--'8 pints per u.H.P. hour.
Weight.--S3 lbs. (i38 I(ilogrammes).
Rotation.-I-ooking at rake-olI shaft, anti-clockrvise.
RECONDI']TIONING DIMI'NSIONS
Cylinder Bore.-DiiLmcter 2'77O5" or 2'7905".
Oversize Pistons Available.- + '020' and + '040".
Undersize Bearings Available.-Connectirrg rod, 1'1150" to t'1050".
RECOMMENDED CLEARANCES ON
RECONDITIONING
Clearances.-Crankshaft and connecting rod, big end, '001' to '003'.
Sicle clearances, connecting rod and cranksha{t, '004' to '009".
Gudgeon pin and connecting rod, small end, '0006" to '0014" Gudgeon
pin and piston, '0002" to '0009".
Piston.-On rliameter of piston at right angles to gudgeon pin: '006" skirt,
'015" top land. Betrveen pistorr rings and grooves, '0035'to '0055'.
Between scraper ring and groove, '0015" to '0035'. Pr,cn 5

(
MODEL 5 INDUSTR.IAL UNIT
En§lne.-Petrol, four-stroke. Air-cooled. Type, Model 5.
Maln Dlmenslone.-Bore, 80 millimetres, stroke, 82 millimetres.
Cubic capacity, 412 c.c,
B.H.P.-4'5 at 2,200 R.P.M.
Valves.-Type, Mushroom. Position, side valve' Tappet clearances:
EXHAUST '020'; INIÆT '010'.
Timing I EXHAUST OPENS 48" before bottom dead centre,
- CLOSES 9" after toP dead centre.
INLET OPENS 17' before top dead centre, CLOSES
52' after bottom dead centre.
Camshaft.-Type, cast in one piece, clriven by spur gear.
Pleton.-Material, low expansion alloy' Number of rings, 3. Gudgeon
pin fixing, circlips.
Connectln5i Rod.-Materia.l, 40-45 ton steel. Type of big end bearing,
white metal, steel backed.
Crankshaft.-Number of bearings, 2' Type, taper roller.
Carburetter.-Make, Zenith. Type 24 T-2.
Ignttlon.-Magneto. Make, Wico. Typ" CJ, 936. Timing, 20o belore
top dead centre. Drive, direct coupled' Sparl<ing plug, size 14
millimetres. Gap,'025" LODGTI-CN.
Lubrlcatlon System.-J.A.I'}. dipper. Sump capacity, 2 pints.
Fuel Tank Capacity.-l gallon.
Fuel Consumptlon"-'9 pints per ts.H'P. hour.
Wetght.-122 lbs. (55'5 Kilogrammes).
RECONDITIONI}{G DIMENSIONS
Cyllnder Bore.-Diameter 3'170" or 3'190'.
Overelze Plstons Avallable.-+ '020' and f '040".
Underelze Bearing,s Avallable.-Connecting rod, 1'1150" to l'1050".
RECOMMENDED CLDARANCES ON
RECONDITIONING
Clearances.-Crankshaft and connecting rod, big-end '001' to '0025'.
Side clearances, connecting rod and crankshaft, '004" to '009'.
Gudgeon pin and connecting rod, small end '0005'to '0014" Gudgeon
pin and piston, '0002'to '0009'.
Plston.-On diameter of piston at right angles to gudgeon pin : '008'
skirt, '017' top land, Between piston rings and grooves, '0035' to
'0055'. Between scraper ring and groove, '0015'to '0035'.
Prae 6
MODEL 6 INDUSTRIÅL UNIT
Engine.-Petrol, four-stroke. Air cooled' Type, Model 6'
Maln Dimensions.-Bore, 85.7 millimetres. Stroke, 102 millimetres.
Cubic capacitY 5BB c.c.
B.H.P.-5'5 at 1,800 R.P.M.
Valves.-Type, Mushroom. Position, side valve' Tappet clearances:
EXHAUST '020'; INLET '010''
Timing:EXHAUSTOPtrNS48'beforebottomdeadcentre;
- CLOSES 9" after toP dead centre'
INLET OPENS l7o before top dead centre; CLOSES
52' after bottom dead centre'
Camshaft.-Type, cast in one piece, driven by spur gear'
Piston.-Material, low expansion alloy. Number of rings, 4' Gudgeon
pin fixing, circliPs.
Connectln§ Rod.-Material, steel' Type of big end bearing' white
metal, steel backed.
Crankshaft.-Number of bearings, 2. Type, taper roller'
Carburetter.--Make, Zenith. Type 24 T-2'
Ignttlon.-I\fagneto. Make, Wico. Type, CJ' 936' Timing' 20'before
top dead centre. Drive, direct coupled' Sparking plug' size 14
millimetres. GaP, '025' LODGE-CN'
Lubricatlon System.-J.A.P. dipper' Sump capacity, 3 pints'
Fuel Tank CaPacitY.-l gallon.
Fuel Consumptlon.-'9 pints per B-H'P' hour'
Wel§ht.-l72 lbs. (88 Kilogrammes)'
RECONDITIONING DIMENSIONS
Cylinder Bore.-Diameter, 3'3955' or 3'4155"
Overslze Plstons Available.-+ '020" and f '040"'
Underslze Bearings Available.-Connecting rod, 1'3655' to 1'3555''
RECOMMENDED CLEARANCES ON
RECONDITIONING
Clearances.-Crankshaft and connecting rod, big end, '001' to '003"
Sideclearances,connectingrodandcra.rrkshaft,.004"to.009,.
Gudgeon pin and "or.r""iing rod, small end, '0005' to '0015"
Gudgeon pin and piston, '0002' to '0009''
Piston.-On diameter oI piston : '006" skirt, '0185" top land' B.etween
piston rings and grooru=, '0035' to '0055" Between scraper ring and
groove,'0015' to'0035'. P.n-cr 7

(
(
ROUTINE MAINTENANCE.
1. DRY TYPE dIR FILTER (Where firted)
It is essential to periodically clean the element by removing and shaking
the felt pad, also dry if necr:ssary. Carefully replace the ilement.
14. OIL BATH ÅIR. FILTEId (trVhere fitted)
It is essential to fi1l and maintain oil to the indicated level on the filter
bowl using clean engine lubricating oil. Occasionallv remove the filter
and wash the element in petrol or paraffin, allorv to drain, clean out the
filter bowl and replenish with fresh lubricating oil.
2. FLYWI{EEL FAN CASING
Never operate the engine rvith any part of the fan casing removed,
as this will allow the engine lo overheat and the piston to score.
This part is absolutclv necessary to rlircct the alr florv so tliat the
engine may be properly cooled.
3. COVER FOR. ENGINO.
An engine.which is exposed to th,. u,eather must always be covered up
when not in use.
4. OVER.LO,{I}ING TEI}T }.INGINE.
Do not overload a cold engine. r\lways allorv it to run light for a
minute or two.
5. CLEANLINESS OF SPARKING PLUG.
Keep the sparking plug clean and a gap o{ .025".
6. DECARBONISING.
Decarbonise every 400 working hours. (See paragraph (a), Page l0).
7. LUBRICATION OF ENGINE.
It is important to use good lubricating oil, and the most suitable oils
for these engines are'-
SUMMER_CASTROL XL
WINTER -CASTROLITE
The oil circulation is maintained by splash from a dipper on the con-
necting rod, and works with a minimum of attention. One point of
vital irnportance is to see that the engine never runs with the oil level
in the sump below the bottom end of the dipstick, otherwise serious
damage may be caused to the engirre. In the case of an engine working
at an excessive angle due to uneven or sloping ground, it is most
important to keep the oil sump topped right up, so that there is no
danger of the dipper missing the oil and starving the engine.
It is important that the engine base is standing level when checking or
re-filling oil.
Check the oil level with the filler cap unscrewed, remove cap and wipe
dipstick, rest the cap on top of the oil Iiller boss to obtain correct
reading.
All parts are lubricated, including tappets and valves; these are
sealed in a dust-light cover.
After every 50 hours' running, but more frequently under due§
condltions, and preferably when the engine is hot, drain the oil,
flush out tlie oil sump with flushing oil (paraffin should not be used),
then refill with fresh lubricating oil after a small quantity of fresh oil
has been run through, to make sure there are no traces of the flushing
oil left in the sump.
8. TAPPET ADJUSTMENT.
For method of adjustment see paragraph (a), Page 12 (Valve Gear).
9. IF COMPRESSION IS POOR.
(o) Check tappet clearances.
(å) Check cylinder head nuts, and tighten if necessary.
(c) Examine valve seatings.
(d) Inspect piston and piston rings.
10. TO INSPECT PISTON AND RINGS.
See that rings move freely in their grooves and are not cracked, worn
or broken, that all ring grooves are clean, also see that the oil drain
holes in the bottom ring grooves are clear.
When replacing see that the piston and rings are replaced as they were
fitted before removal.
1I. MAGNETOS.
fyp" e. 576F..2. (Ref. Pages 16 and 1Z). Type CJ.9B6. (Ref.
Pages 18 to 2l).
Prrcn 8Prcn I

MAINTE}dANCE OF E,NGINE
1. DISMANTLING OF' ENGINE.
(a) Decarbonlsing.
Remove H.T. Iead. Remove sparking plug. Remove petrol pipe by
unscrewing the carburetter banjo. Remove cowl by unscrewing top
bolts, washers and base nuts. Detach throttle link from bottom
joint. Remove nuts and bolts holding down cylinder head' Lift off
cylinder head. Remove gasket. Norri.-When replacing gasket, see
that this is replaced the correct way, i.e., to conform to inside shape
of cylinder head, and not overlapping on one side. Take off inlet pipe
with the Carburetter. Remove cylinder base nuts and remove
cylinder, tal<ing care to draw cylinder off evenly, and that in removal,
piston does not foul side of connecting rod. Remove valve cover by
unscrewing fixing bolt. Hold valve down on seat, press up spring
collar and remove cotter.
NorB.-It is advisable to mark the valves, so that they are ground
on their correct seatings' Clean carbon deposit from valves, valve
ports and cylinder head. AIso remoYe carbon deposit from pistou
crown and clean, taking great care not to scratch, or otherwise
damage the surface. Apply a small quantity of fine carborundum
paste to ttre valve seat and place in position for " grinding in."
Twist valve in a semi-rotary motion, using a very light pressure,
for a short while, occasionally lifting valve and turning to a fresh
position. Remove valve and wipe face and seat clean' Thoroughly
wash with clean paraffrn and dry. Replace valve and turn on seating
a few times. Withdraw and see if both valve and seat show a bright
line all round. If not, repeat the process until this result is obtained.
Mal<e sure that valves and their component parts are replaced
correctly. Replace cylinder on engine and check clearances between
tappet head and valve stem. For correct clearances see Pages Nos.
4 to 'l , and method of obtaining them, see valve gear, Page 12,
paragraph (a).
(b) Ptston.
Inspect piston rlngs and see that they are {ree to move in thelr
respective €(rooves, that they are not worn, cracked, or broken.
Inspect piston ring groove.s and carefully clean if necessary. Also
see that oil drain holes in pistorl are dear.
Prcn l0
To remove piston from connecting rod, first remove circlip as
{oliows: Insert a sharp pointed tool, such as a scriber or similar
tool, into one end of the transverse slots in gudgeon pin boss and
under tail of circlip. Lever circlip frorn its groove, holding a piece of
rag in front to prevent circlip flying out and causing any personal
injury. Push out the gudgeon pin in the direction of removed circlip.
Lift piston clear of connecting rod.
Remoual ønd Replacentent af Pistun Rings.
To remove piston rings from their grooves, a piston ring expanrling
tool may be used. If this is not available, obtain several thin and
narrow strips of metal and insert these betrveen back of piston rinp
and piston. Work these strips round until all rings stand clear of
their respective grooves. The rings may now be easily removed
by sliding in an upward direction, clear of piston. If rings are
serviceable, or if a new ring or rings are fitted, reverse the proce-
dure of removal.
(c) Blg and Small Ende.
The small-end bush is a press fit in the connecting rod and is reamed
to size after fitting to connecting rod. It may be removed by using
a special drawbolt or by pressing out with hydraulic or hand press.
Reverse the above procedure when f,tting new bush.
The big-end is steel backed. The 2 halves of bearing are secured
in working position by bolts and self-locking nuts.
(d) Matn Bearlnge.
The main bearings are situated on either end of crankshaft. The
centre portions, which carry the rollers and cages are a press fit
on crankshaft journals.
The outer races are carried in housing plates on either end of cran-k-
case and are a press fit.
Noru.-The centre portion of main bearings are not easily removable
from crankshaft journals, and should not be removed unless re-
placement is necessary.
(e) Crankshaft.
To remove crankshaft from crankcase proceed as follows: Remove
frorn driving end of crankshaft any coupling device, also its key.
Withdraw splitpin from starting pin and knock out starting pin.
Unscrew bolts and remove starting boss. Next remove flywheel
securing nut. lteplace starting boss and fixing screws. Screw the
special draw bolt into centre of starting boss and continue to screw
in until flywheel is free on taper, taking care not to lose the key.
Remove flywheel clear of craakshaft. Now remove nuts holding
Pecr I 1

crankcase to engine base and lift top half of engine clear of base.
Inspect top half of engine and remove connecting rod big end
nuts and bolts, then remove big-end caps. Push connecting rod
into cylinder as far as it will go. Next remove engine main bearing
plate, first removing nuts and dralu housing plate off crankshaft.
Turn crankshalt until it rvill clear camshaft and withclraw crankshaft.
2. VALVE GEAR.
(a) Yalves.
When valves have been " ground in " after decarbonising or when
a new valve or valves are fitted, they must be adjusted as follows:
With valves on their seats and cold engine, check clearances between
end of valve stems and top of tappet caps with feeler gauge. The
correct clearances are as Ref. Pages 4 to 7, and are obtairred by
fitting tempered steel shims betrveen top of ta.ppet and tappet cap.
The shims are of various thicknesses.
Timing
Timing marks are stamped on crankshait pinion, camwheel and
magleto driving wheel when the engine is erected. A{ter dismantling
the engine, care must be taken to ensure that these marks coincide
with each other. First mesh the camwheel and pinion with their
marks corresponding, then revolve the crankshaft until the mark
on the camwheel points towards the centre of the magneto driving
wheel bush. Now insert the magneto driving wheel with its marks
corresponding with the mark on the camrvheel. For correct valve
timing see Pages 4 to 7.
(b) Camshaft Drive.
(i) R.emovtng and Replactng.
'fo remove camshaft, the crankshaft must first be removed ;
with crankshaft removed, proceed as follows: Drive out
camsha{t axle toward flywheel side of engine. This operation
will remove the sealing disc and allow free exit of camshaft
axle. Camshaft may novr be withdrawn.
Repløcement of C ømshøft.
Reverse operation of removal and replace sealing disc.
(lt) Adjusting.
No means of adjustment between camrvheel and driving pinion
are provided, as both components work on fixed centres.
Ptcs, 12
3. GOVERNOR.
(a) AdJusting.
To adjust governor spring, slack ofi locking nut. To increase engine
speed, turn the knurled adjuster in a clockwise direction. To decrease
engine speed, turn in anti-clockwise direction. Tighten locking
nut when correct adjustment has been obtained.
(b) Repatring.
To gain access to the governor for repair or renewal of component
parts, disconnect throttle link from governor control arrn, remove
the 4 securing nuts and remove governor cover. To remove governor
weights withdraw governor actuating rod, drive out governor weight
fulcrum pins, remove weights. To remove gear wheel, turn engine
until small end of taper fixing pin is opposite the plug in crankcase.
Remove plug, drive out taper pin and slide gear wheel off magneto
driving shaft.
Norr.-If replacement of the gear wheel is necessary, gear wheel
and magneto shaft complete must be fitted as gear wheel and shaft
are drilled and reamed in position for correct timing relation. To
remove magneto driving shaft on the " A " type magtreto it is
necessary to remove magneto by unscrewing the 3 fixing bolts and
sliding magneto sideways to disengage magneto driving plate.
To remove the CJ. type magaeto, unscrew the two fixing nuts and
pull the magneto fonvard to disengage magaeto driving plate.
4. FUEL SYSTEM.
Fuel is fed to the carburetter by gravity from tank. The petrol filter tap
is fitted with a fine mesh filter and it is important to periodically clean
this by washing in petrol.
Each filter is fitted with a tap which requires to be screwed either
fully in for OFF, or fully out for ON, to ensure leak proof operation.
Peor 13

((t04
t03
I
&
67
64
58
65
56
63
62
tt
98
t2r
57
t12
99
t00
t07
t05
4n
r06
42=/-
il 4.7 5P
?
lt9
25
r29
73 72
-/ -/
t20
t0t
35
36
33
.1
.4
,3
9
I
t0
I
1
-'/-
t§.' -'=/'
::)-:-:.^-å 69
44
7
54
6
5
94
r25 53
ez-W
eø'$f,.
,æ
93
92
a7
q
t0?
il7-
77
PAGB 14
80 9l
SEE PAGES 26 -1-O 37 FOR, DESCRIPTIONS! gEE PAGES 26 TO 37 FOR DESCRIPTIONS Pecr 15

(
(
SDRVICE INSTRUCTIONS FOR WICO TYPE A.57682.
MAGNETO
Installatlon and tlrnln§
Slowly turn thc ongirre cranl<shaft in
the normal marrner rrntil tlre piston is
approximately ;[" before top deåd centre
on,the compression strolie (i.e. when both
valves are closed). Then remove ilre
magneto contact breaker cover and turn
the magneto in a clockwise rotation until
the brcakcr points close, then rcversc ilre
rotation until the breal<er points just bcgirr
t-o separate. 'Ihen fit the coupling on-to
the engine coupling and sccrrre the daqneto
rn posltron.
To re-checl< the timine, slowly pull thc
engirre over on thc cornprcssion s[ro'ke, u;rd
illhe magneto has becri corrcctly position-
ed, the magneto impulse tvill give a clic)r
Just atter top dead centre.
Tlmln§
No adjustment is provided for timing
the magneto, which is .,n,,"""..r.y]
as the magueto is correcfly sct bcfoie
leaving the works, so that-flre startii.rg
sparh occurs just after top duad ccltrc anå
the. running spark 25. belorc top tlcrd
contre.
Lubrlcatlon
The magneto is pror.irlcd with two
spring oilers. Once ejery 200 ]rorrrs eithcr
one of these oilors should ire Iilk.rl to
ovcrfiowing with Castrolite. After every
1,000 hours it is trecessary to ru-lubricate
the carn oil,pad. This is dirne by removing
tho pad and squeezing and woririrrg into ii
a Summer grade of motor transnrission
grease which will closelv resemble that
used at the factory. Do not usc ordinary
grease.
Impulse coupllnE
The impulse coupling is designed to give
a spark of high density for §tarting.- It
automatically- cuts out at about" 165
r.p.m. The enslne should not be run
contlnuously below thls speed, as thls
would cause unnecessary straln and
wear on the lrnpulse parts.
The irnltulsc also pror.icles a retarded
spark for starting, aritonratically advanc-
ing it as tlre enginc spoccls rrp, rciurning to
the retarded position wlren the en§ine
stops.
PÅcB I8
Cleanlng of lmpulse
. If the impulse becomes clogged with
dirt,_ and the trip arm fails io engage
or dlscngagc, or the impulse is sluggish in
action, it should be flushed out thoroughly
with paraffin, taking care not to allowåny
parallin to work its way into the magrrcib
housing.
Replacernent of breaker polnts
- If the points need replacing, both the
fixed and moviug points should be re-
placed at the sarne time.
To rernove the breaker arrn, take o1I the
breaker arm clarnp screw, lock-washer and
clarnping washcr, together with the
lrre:rl<cr arrrt terminal scrclv and pull the
assembly olf the breal<er arm pivot. The
frxcrl corrtact 1,llatc rn.ry thcn bl takelr otf
thc lrrcakol arrn pivot,'alter rorrroving the
{ixed contact screw.
Romoval of condenser
Rcrnove screw holding down the breakcr
arrn spring. -Ihe condenser is then taken
from thc Ilrcakcr box by rernoving the two
scrcws f:rstcniug it dovrn.
Rernoval of coll
Ilemove the top cover and the
breal<er box cover. Viewing the magneto
{rom the driving end, rcleaie the pri"mary
lead by loosening the right irair<1 sia"e
earth stud. 'Ihcn remove the trvo screws
holding down the core clanps. 'furn tht:
magncto slialt until the magnetism no
longer grips the coil core to the main
housing, pull the coil and the coil core free.
The coil is held on the core by a we<1ge.
If the coil is to be replaced, cånsideralle
{orce may be necessary to removc the coil
from the core.
In replacing the coil and coil core, be sure
that, the ground surface of the core is against
the housing, that the primary lead [o ttre
earthing stud is propeily located and that
the primary earth lead is fastened under
the coil core clamp screw.
Breaker polnt openlng
The correct breaker point opening is
.015'. When readjustmånt is ,i"."rråry,
loosen the screw which locks the fixed
contact plate and turn the eccentric-
headed screw until the correct opening
oI points is obtained. Then lock thå plat6
securely.
SPARE PARTS LIST
raxt2tc H.r,
xlø
xtst
x raI
1,,,
øt2a
x2l15
cra2 I
sls
Peoe 17

(
(
SDRVICE INSTRUCTIONS F'OR WIPAC
TYPE CJ 936
IN§TALLING M,dGNEI'O
Slowly turn the engine crankshaft in
the normal manrler untii the piston begins
to rise on the cornpression stroke (i.e.
whea both valves are ciosed). Next
agaemblo the steel floating couplinq on to
the engine coupling. Iiinally take the
magneto and turn the magneto shaft
anti-clochwise until the impulse pav.
enuages the irnpulse stop, then siorvly turn
the magneto shaft in the opposite direction
until the trvo driving dogs are in line
with the two free slots in the steel coupliDg
atrd secure the magneto in position. To
re-check the timing, slowly pull the engino
ovor on the cornpression stroke, and i{ the
magneto has been correctly positioned,
tho magneto impulse will give a click
jurt before top dead centre.
TIMING
No adjustment is provided for timing
the magneto, which is unnecessary, ae
the magneto ia correctly set before Ieaving
the works, eo that the starting sparl
occurr just before top dead centre arrd
the running spark in accordance u'ith
details on Pages Nos. 5, 6 and 7.
LUBRICATION
Tho only part requiring attention in
the field is the canr oil pad which should
be re-lubricated after every 1,000 houre.
This is done by renroving the pad and
squeezing and working into it a Surnmer
grado oI motor trangmissiou grease which
will closely resemblo that used at the
factory. Do not uee ordlnary gtease
aB thlo wlll splash on to the trreaker
polnts cauelng ml8flrlng and dlfflcult
startlng.
The main bc.aring situated at tire rear
end of the magneto is packed with grease
before leaving the v'orks and should be
rertewed oirly u'henever the rnagneto ie
servicecl. 'lhe flont main bearing is oil
impregnateci and slrr.ruld only require a
fol' rirops of lubri<;aring oil at the same
t me.
Pacr lt)
MAGNETO
IMPULSE COUPLING
The impulse coupling is designed to
give a sparh of high density for starting.
It automatically cuts out at about 165
r.p.m. 'fhe engine should not be run
continuously below this speed, as thio
would cause unnecessary strain and $,ear
on the impulse parts.
'IIte impulse also provides a retarded
spark for starting, automatically advanc-
ing it as the engine speeds up, returning
to the retarded position when tho engino
Btops.
CLEANING OF IMPULSE
II the inrpulse becomes clogged with
dirt, and the trip arm fails to engage or
disengage, or the impulse is sluggish in
action, it should be Ilushed out thoroughly
rvith parafi&n, taking care not to ellow
any paralfin to work its way into the
magneto housing.
BREAI(ER POINT OPENING
Itemove cover acrows and cover to
obtain access to the breaker points.
Ihe correct breaker point opening ia
.015'. When re-adjustrnent is necessary,
loosen the screrv *'hich locks tho fixed
contgct plate and raise or lower the plate
until the correct opening of points h
obtained, then lock the plate recuroly.
REPLACEMENT OT'
POINTS BREAKER
The breaker points are supplied ae an
assembly including the fixed and movoable
point, the die-cast back plate and oil
pad. To rcmove the original assembly
loosen the breakor arm apring retainer
screw and release the two leads coming
from the coil and condenser, then removc
the trvo screws securing tho dio-cast back
plato to the main housing.
When fitting the new breaker point
assembly secure the die-cast back plato
in an approximate position and adjuct
the breaker point opening to '015', then
slightlv lnoceri the lrvo back pl,ato rcrawl
and tuln the plate rvithin its slots until
the breaker pornts begiu to open and
when the rotor larninations itave lelt
the core larninations by apitroximately
1l»'. Finally tighten the trvo screws ancl
reconnect tl're two leads {rorn the coil
and condenser,
RDMOVAL OF' CONDDNSII,R
'Ihe condenser is housed in the base
of the main housing immediatelv below
the breaker points. Remove the hexagon
nuts securing the connecting lead and
earthing strip. Unscrew the condcnser
out of its housing, using a special tool,
part nurnber 00146, but before doing
thie it is advisable first to rernove the
magneto cover so that the connectin(
load can be pushed back into the ruain
housing out of the way of the tool.
REPLACEMENT Or II,T. LEAD
The H.T. Iead is secured to the II.T.
coil by passing the rvire through the srna.'!l
hole in the coil II.T. tab and twisting the
rvire around this tab. When rernoving,
or refitting a new H.T. lead exercise
the greatest care to ensure that no damagt
is done to the coil.
Never solder the FI.T. lead to the
tab because even with the greatest caro
it is possible to sever the internal con-
nection. This would not immediately
be apparent, but the defect would cause
the coil to breali down within a com-
paratively short period.
RI'T{OVAL OF COIL
Remove covor and H.T. Iead. Loosen
the breaker arm spring retaining ecrew
and release the primary lead. Thon
remove the two hexaqon posts holding
dos'n thc core clarnps, this will also
releasc tlie earth prirnary lead. Turn tho
magncto shaft until the magnetism no
longer grips the coil core to the main
housing, pull the coil and the coil coro
froe.
hr replacing the coil and coil core bo
sure that the primary earth lead ia
fastened under the coil coro hexagon
posts and the insulated primary lead to
tl.re breaker arm spring rotaining acrew,
Plcr 19

(
SPARE PARTS LIST FOR WIPAC C.J. 936 MAGNETO
ComponGnE åod Sob P.r$ ia Explod.d YI.w
01,O,
Cov.r Unit
0t080
StoD Unlt
01,O,
Coll Unit
ot{0.t
Cond.nr.r Unit
0t{o3
Co66ct Brsakat
Unlt
Pnrt NG
086i17
01107
01080
Deccrlptlon No. off
I
I
2
I
Cover Fixing Scrow
Cover Unit
Stop Unit
0L422 CoiI Clamp Set
0140, Coil Group
01408
0r{04
011o5
01298
0r381
ot322
00466
0r ll8
01330
01409
0r417
01393
06679
06680
06e€l
01400
01421
Coil Unit...
Condenser Uoit . ..
I
I
I
I
I
I
I
I
I
I
I
I
I
I
"t
"il
I
,J
Contact Breakcr Unit
Outlet Block
Main Housing Unit
Bearing Bueb
H.T. I-oad Group
H.T, I-oed Sleoving
Rotor
Ball Raco Gasktt
BaIl Racc Unit ...
Rotor Unit
w
H.T, Lod GrcuD
0ll9t
iotor Unit
0l{00
ahDult. Stop Unit
06ll2
lhpulr. Unit
0t il8
H.T. L..d Slccvin8
0t330
Rotot
0l 109
Erll R.rc G.rl.t
ot4t7
B.ll R..e Unit
06579
Oil S€.1 S.t
06680
Stop Pl.t. S.t
0568 r
StoD Pht. Firitrg S6t
o t,t2 I
O.ieon Fl.ng. S.t
06lgo
O.iv. SDtint
01419
Drivr Cup S..
063r8
LcL Nur sct
Oil Soal ...
Impulao Stop Plato Sot
Impulso Stop Plato Fixing Sct
Impulee Stop Unit
Driven Flugo Set
I
I
I
I
I
I
t
06180 Drivo Spring
01419 Drlvo Cup Sot ...
06398 LocLnut Sst
06182 Impulec Unit
EXPLODIiD DRAWING OF WIPAC CJ 936 MAGNI''IO
Plcr 20 Ptoz 27

(
ZENITH CAR.BT]RE,TTER.
24T-2 53 m/m. flange centres
STANDARD SDTTING
Choke Main Air S.R.
Tube Jet Jet Jet
Engine Model
(Petrol) 412, 413,5 c/s 1406 13
(Paraffrn) 412,413,5 c/s 1425 13 62 r.75 50
70 1.75 50
Needle
Seating
1.5 m/m
1.5 m/m
1.5 m/m
1'5 m/m
(Petrol) 6
(Paraffin) 6- cls l4O7
- cls 1426
16
l6 50
50
82
95
1.50
1.50
4/'
41
Ptos 22 I IMPORTANT.-§tate alze requlred
(
Ref.
I
0
3
4
D
6
7
8
I
10
1l
t2
13
t4
15
16
t7
18
19
2,0
2l
22
oq
24
23
28
27
28
?,9
30
3l
32
38
g4
35
36
37
38
39
40
4t
42
43
44
45
,tB
ZENITI{ Carburetter Spare Parts List
Deecrlptlon
Throttle
Screw Fixing Throttle (2 olI)
Screw Fixing Bowl to Barrel (5 off)
Spring Washer for do. (5 off)
Throttle Spindle
Spring for Air Regulating Screw
Air Regulating Screw
Fibre Washer for Plug or Elbow (2 off)
Petrol Elbow or Banjo
Filter Gauze 06100
Filter Plug, Fixing Petrol Pipo ... 06098
Throttle Stop 013111
Throttle Lever (Supplied by J. A. Prestwich) ...
Spring Washer for'l'hrottle Lever 04691
Nut for Throttle Spindle... 05581
Washer for Needle Seating 09619
Needle and Seating (1.5 m/m)r (State size) 09121
Float 012318
Slow Running Tube* (State size) 015408
VYasher for Main Jet
Main Jet* (State size)
Washer for Plug over Main Jet ... 04625
Plug over Main Jet (used for c/s 1406 and 1407 only) 012650
Needle Valve for Main Jet Adjustment. 013603
Packing Nut for Main Jet Adjustment... P-12803
Packing for do. P-1503
Adaptor for Main Jet Acljustruent 012850
(Items 24 to 27 used for cls 1425 and 1426 only).
Drain Valve Plug (used for c§ 1425 and 1426 only) F-1410
Carburetter Bowl (Ass'mb'd with itemr 37, 38 & 39) 016314
Nut for Strangler Spindle 05581
Spring Washer for do. 04691
Spring A-nchor Plate
Spring for Strangler Spindle (Autom*tic)
Sleeve for Strangler Spindle
Strangler Flap
Screw Fixing Strangler Flap (2 otr)
Spring for Strangler Lever
Strangler Lever
Part No.
0r2465
16776
012405
04691
0r2628
09846
09845
06101
08103
06167
013121
013110
0r3109
013I08
012449
t6776
013107
014335
013104
0131 14
Bearing for Strangler
Strangler Spindle ... Lever
Air Jet* (State size) 012773
Choke Tube* (State size)
Gasket (Bowl to Barrel)
Carburetter Barrel
Throttle Stop Screwrnrottre btop
Spring for do.
013119
012631
013073
05923
04611
Pro* 23

ALf TRNATIV€ VARIABII MAIN JET
SECTION CARBURETTER TYPE 2{7.2,
GENDRAL DESCRIPTION
'fhe 21'l-2 Carburetter showu above in cross
section is a vertical instrument in general use on
ight Commercial Vehicles, Marine Engines
Stationary Industrial Plaqt and various types of
Mobilo Agricultural equipnent. 'fhc float chamber
is ofi-set ia order to keep it ar closc ar possible
to tho main discharge tube, thus ensuriog high
anglo operation in any direction without flooding,
or stalling. The lustrument caq be arranged to
tako all sir through the uain intako which lr
invariably protccted by an air cleaner, Thtl
feature ls called Ior when working under dusty
condltion! close to the ground, if long lile and
reliablo servlce are to be obtalned.
The carburetter consists of two maia castingr,
thc upper or barrel portlon being secured to the
lowor bowl portion by 6ve acrews, ono of which
is shown (8). Itr order to keep thl3 carburettcr
as siEple as possiblo we hÅve uscd ono princlplo
jet and a slow running jet. Suitable alr bleeding
is arranged to atomiso the luel and to tnaintalo
a correct mixturc strength under all condltionr of
engine operation. The drawlng rhowr the princl-
ple, or mail jet (2) covered by thc largo hexagon
plug (l). The slow running jet lr sko shorvu
(15). Thc air bleeding to the maln jet $yttem
is controlled by the air jet (14), and thb air 3upply
is teke! Irom tho main air lntaks. It will be
uotlced that thls air lssues lrom thc holer ({), (6)
aad (6), at high engine speeds whcn tho fuel iu thc
maln dischargo tube (7) Ialls to ltt lowest level.
Fuel metered by thc slow runnitrg jet (lS) ir
rtomlsed by an alr supply tsken through thc malu
sir lntakc aDd controlled by the serew (12). Tht.
mixturo i$suer through tho ldle dlrcharge channcl
(10) and tho progresrion orlåce (11). Ttc doat
chaEber coDtains a normal typo float (10) ead thc
PAes. 24
usual combined needle seating valve (lg), The
correct Iuel level is autouatically provided. by the
size of the float chaDrbcr and the float, together
with the position of the ncedle seating, the latter
part is usually fitted with one washer, but two
washer catr bc used iI it is desired for anv reason
to reduce the fuel lcvel in the iloat chambcr,
MAIN ADJUSTMENT
The comblnation of choke tube, main jet antl
alr jet will be Iound corrcct for the engine to which
the itrstrument is fitted and it should not be uecessary
to alter these parts when deallng with ortliuary
running trouble. Cleanliness is the keynote for good
results. Takc speclal cåre to use a suitablo screw_
driver when rcmoving the main Jet in order to prevent
damage to the thread in the carburetter casting.
The mair jet adjuster (22). is a tapered Deedlo
pa$lng into the main jet orificc and controlling thc
flow of fuel lnto the jet. lVhen turoed ln a clockrvise
direction as far as possible, all fuel flow to the naln
jct will be coDpletely cut-o{I. On the other haqd, if
the adjuster (22) is opened up ln an anti-clockwise
dlrection more than about two coruplete turn8,
the full luel flow of the main jet rvill be provided.
Do not screw the needle into the jet with ercessive
lorce, as this will damage the taper of tho needle
&ud tho correct settiug specified will no longor apply.
The packing nut of the adjuster should be tighteDed
slightly if the luel drips from the adjuster, A gasket
must alwayE be used between the two halver oI the
carbur€tter.
SLOW RUNNING ADJUSTMENT
Tbis should be carried out vhen the engine is
hot, tho rniuirnum ruuning speed ls usually set
sround 550/600 r.p.m. A apring-loaded adjustlDs
rrow lr provided close to the throttlo lever by
means of which the exact throttle opening cau be
adjustqd for idling. The head of ilris scre\y should
be turned clockwise to increase the idle specd and
uicc o./sø. The slow running mixture screw (12) rvill
provide a richer idle n:ixture if turned itr a clockwise
direction by reduciog the supply oI slow running
air, On the other hand if there is evldenco of rich
running, i.e., black smoke lrom the exhaust when
idling, this screw should be given a quarter, or
one-half turn in an anti,clockwise direction. The
usual setting is about one corlpletc turn open from
the fully home position, but of course this varies
slightly frorn orre cngine to atroflrer.
COLD STARTING (see also page 3)
The rich mixture necessary to nteet this conditlon
is provided by closing the choke or air strangler (3)
and at the sarnc time set the throtile to about one
third of its full movement opcn. (See SIARTING,
page 3). As soon as the engine is mnuing the strangler
flap will open autoulatically to adrnit air; however,
as the engioe warms up the control operatiDg the
strangler must be rnoved to the futly open position,
HOT §TARTING (seo also page 3)
When the etrgine is hot or warm, the choke ls
not lcquired, and the throtde position is not
irnportant. II thc engine does not Inrncrliately
respond check the usual details, such as pctrol
tap ln " ou " Ilosition, etc.
GENERAL
The carburetter is an accurate netering lnstru-
ment. Consequently, absolute intcrnal cleanliness
is essential if satisfactory resuits are to be obtained,
\Vhen the cornplete instrument is rerrroved and
disDratrtled for cleanitrg purposes, it is a good plan
to clean the outside of the carburetter tholoughly
belore any dismautling takes place. The parts
should bo carefully set out on a clean sheet of papor
and the main castings blown out with compressed
air if this available. The strangler flap complete with
its spindle should move quite freely against the light
anchoring spring when the strangler lever is held in
the closed positioa and the flap is pushed with the
finger. It rvill be noted that the light spring referred
to is secured in one of the notches of the spling
anchor plate, and the spring loading can be readily
adjusted. The standard position is the top or
" l2 o'clock " notch. IR commoD rvith all air intake
choke valves the straogler flap nust be cornpletely
closerl against the air intake bore when the extemal
lever is rnoved to the fuUy closed position. When
replacing the carburetter take care to use a thin
flange Basket as a thick gasket may tend to squeeze
out cirusing the flange on the oarburetter to bend and
this would allow æ air leak to occur. When dealing
with a flange in this way it can be trued up in the
ttsual nlanner with a file. Before atternpting to
start the engine, subsequent to refitting the carbur-
etter, it is a good plan to check the throttle cotrtrol
atrd also the choke cootrol to make quite sure these
parts work corrcctly, giving the full amomt of
travel, etc.
The l{aker's adjustment oI the carburetter and
setting lor tlre main jet adjuster gives correct
mlxturo strcngth for all conditions up to about
3,000 feet altitucle above sea level. Wherr operating
8t higher altitudes it may sometimes bo necessary
to deal wiUr 8yDptoms of rich running and possibly
loss of power. In these cases, the rnain jet adjustcr
will bo found Dost useful in obtaining a clean
ruDning exhaust. Turning the adjuster in a clock-
wise direction one-quarter of a turn at a tinre will
bo found eflectlve in weakening the rnixture delivered
by the carburetter, In any casc of difficulty our orvn
Servico Dcpartment or the nearest Zenith Carburetter
Servico Station should be consulted.
Prcu 26

(
Illuc. Part
No. No.
I 18572
2 13054
3 19926/r
4 19915
5 16,590
6 5A2765
7 3730
I 14695
I 284
l0 13962
ll 16894
12 19671
13 13023
- x{A31.12
t5 13961/r
16 28s
t7 19517
I8 SA2912
21 194115
l9 19749
20 673r/l
25 18479
28 18474
27 18546/r
- 22748 12
28 22342
29 65'27
30 18674/2
8t 285
32 1455s
I 8316
33 18540
34 1B61 1
35 I1669
36 6627
37 12222
38 16163
39 69311
40 12864
6374
4085
42 19137
13 10010
l'7690
44 18346
46 14630
14662
47 14605/r
48 18346
49 14630
14662
MODtsL 4/2 SPARE PÅRTS r,rST
TITIO
Ilare-Engine...
. Gasket ...
,, Oil Trough ......
. Fixing Bolt
Filler Tube
. Cap and Dipstick ...
Drain Plug...
. Fixirig Stud
,, Nut
. Stud-Cowl !ixing
Carusha{t
. Spindle iind Cap ...
Carburetter
. Flange Grucket ...
" Fixing Nut
. Choke f,over Bracket ...
l-ever \Vashcr
Scrcw
,, I.ochnut ..
Liner--I3ig },ind
Ilolt-
- I-oci:i,rq Wir.shr:r
. Nut-irig End
Bush-Snrall Iind
,, Ilase Fixing Nut
. fop fixing'nolt ..
\\rasher
Crankca.se
No,
ofl
Conrod
Cowl
pr.
Tappet i3ush
Bu!å--lfagnetoi)rive .:
PIug...
Stud--Cylinder Fixing
. ---Cover J)late lrixing'
. -{;overn(lr Cover l;ixing
,, -Tank ilracket l;ixing
Vacuurr Valve t irai"ing ...
l)isc
Shi,:ld
,, I;ixing Screrv
W;rsher ...
Bearing-Itlywhecl Slde ...
,
q
I
I
2
I
I
I
,
I
4
4
4
4
3
I
9
Seal cup
. Pi^te-itri.,irrg åia" ... :::
Boaring-Driving Side
,, Seal cup
It is essential to quoto the Engine Number with all symbols whon orderiug Sparor
owing to the different Engine parts 6tted to various customers' equipment.
Failure to do this may result u,ith incorrect spares beiug supplied.
Customers' Patternr not returned uniess specially roquortod.
P.rce 26
(
Illut. Part
No. No.
50 14664
14629
5t 285
52 11603
53 16729
54 16712/r
134 18621
55 16895
56 14602
57 16163
58 10080
14785
59 14624
60 14625
3574
- sA3437
22391
18317
14626
4082
16163
82 14621
63 284
64 14609/4
65 21635
66 18675
18316
87 2n5
68 18607
70 16631
- 14076./1
71 14613
72 7908
73 12893
- sA251 1S
74 16896
75 r3059/l
7ø 12899
77 146(i8
78 13449
79 22554
80 sA2645
81 12840
82 3574
83 14770 lt
84 1862s /l
85 14772
86 1477t
87 14762
88 16620
89 14758
90 sA2926
91 16692
92 18744
93 14096
94 14097
95 14098/l
TltIe
Crankcasc Boarlng Plato Gaskot
Itccess Washer ...
Plate Fixing Nut
Crankshaft
. Koy-Pinion Fixing
-Flywheel Fixing ...
-Driviug Sidc
" Pinion
Cylinder llarrel with Valve Guides ...
- Fixing Nut
Head...
- Gasket...
. Fixing Bolt
. Stud-Manifold Fixing
-Head Fixing
, » -Valve liox Cover rr'ixing ...
, Valve Box Cover Gasket...
Fixing Nut
\Ianifold with lielease Tap & Washer
,, Iulot Rclease 1'arp
,, W:rslrer
. Gasket
- Fixing Nut
, Carburetter Fixing Stud
Baso Gasket..
No.
ofr
I
I
1
end Stud Washer
,, Stud Nut
F'ixing Nut
Extractor Bolt
. Starter Boss...
- Fixing Bolt
,, Drive Rod
Gcrvernor Gear Assembly Comprising Iterns 74 fo7g
Governor Gear (Not Supplied Scparatell )
. Weight Fulcrum Pin
,, Driving Spindle (Not Supptied Separately)
- Gear I'aper l)eg
. Actuating Rod
. Cover Assembly ...
Gashet
Fixing Nut...
Flyrvheel Fan
2
I
I
I
o
Friction Plug
. Plunger ..,
- sp.irig ... ... :.. ...
. Locknut...
Lcver-Start and Running
- Washer
- Fixing Screw
Control Arm Includes Item gl
Fixing Scrow
" Spring Plunger ...
" Adjusting Scrow...
Locknut
It is essential .{o q-ggte the Engine Number with all symbols when ordering Spares
owing to the dillerent Engine parts fitted to vario-us customer'g equipnient.
Failure to do thig may result with incorrect spares being supplied.
Customort' Pattsrna not returned unless specially requested,
Pta* 2,1

(
Illua. Part
No. No.
- lttrA3227
100 18957
14325
18315
toz 12861
18865
- 14941/t
103 sA3362
104 SA3370
22284
105 sA3469
106 12905
t07 285
108 sA3427
lll M43129
ll3 18617
114 SA2592
SSA25
l I5 19540
l16 6633/3
tt7 22499
14183
It8 9900
ll9 11676
r20 19104
5512
16579
14967
1681 I
123 18593 i2
124 21267 12
* sA3493
125 16071
127 SA3310
I 9379
128 14622
126 7451
13090
129 5408
130 12930
131 7720
133 6337
t32 5502
- MA3144
16925
19109
19130
- 2130611
- r3e61/l
Magneto Tltle
H.T. Låad c"åpr"tå,' re1"...
Fixing Bolt ...
Washer
Driving Coupling siiierd
No.
otr
I
I
8
3
2
I
I
I
2
1
1
1
tI
I
Petrol Tank with Cap
Filler Cap Sealing rVasirå. ::. :::
': :, Fixing Brachet c".tut... ::: :.:
: :, Fi'iing strai e.Illuy' :.. ..:
,, Filter and -fap
,, Washer ...
- Pipe with Unions
PiÅton Aåsembly, Inclu<les items tlb'to ttS'
Piston...
,, Ring-Compression
-Compression, Top Groove
-OiI Scraper, Bottorn Groove...
,, Pin-Gudgeon . ..
Circlip
Silencer. ..
Spanrier-Engioe-$' x $'
,, -Cylinder Head
,, -Sparking Plug
,, Tommy Bar
Sparking PIug...
Suppressor & Protector
Startiug Handle Complete
Tappet . ..
ttr?åttte Lever & Link Assembly ::: :.: .::
l'hrottle Levcr an<l Link Fixing Screw (Ilottom) ...
Valve
Shim...
Guide-Inlet and Exhaust
End Cap
Cotter
Spring Collar-Top
,, -Bottom
2
I
I
2
,
2
t
2
o
When Oil Ba.th Air Filter is litted the following parts are neccssary
Air Irilter (Oil Bath I'ype)
Clip ...
Elbow
Iilbow Clip . ..
Support
Carburetter Gasket (Extra)
It is essential to quoto the Engine Number with all symbols when ordoring Sparoe
owing to the difierent Engino parts fitted to various customers' oquipment.
Failure to do this may result wit}l incorrect sparat being supplied.
Customer's Patterns not returaed unless specially requoetod.
P.lcr 28
Illus. Part
No. No.
I 18572
2 13054
3 19926/l
4 19915
5 16590
6 5A2765
7 3730
8 14695
g 284
l0 13962
ll 16894
12 19671
13 21608
- MA3l42
l5 13961/1
16 285
l7 19517
l8 sA2912
21 19435
r9 19749
20 673r/1
25 18479
28 18474
27 r8546/t
- 22748 12
28 22842
29 6527
30 sA3482S
21692
1494 1
3l 285
32 19705
183 16
33 21546
34 18535
35 14669
36 6627
37 12222
38 16163
39 6933
40 12864
4t 16361
6374
4085
42 19137
1 7690
4s 10010
44 19612
45 16269
46 21518
MODEL 4/3 SP^RE PARTS LrST
Title
Baao-Engine...
,, Gasl<et . ..
,, Oil Trough
,, Iiixing Bolt
" ,, !'iller Tube
. Cap and Dipstick ...
. ,, Drain Plug...
,, Fixing Stud
,, Nut
,, Stud -Corvl I.ixing
Camshaft Sirindle Iind Cap ...
Carburettor
., Iilange Gasket ,..
,, Chokelever l]racket
Lovor
,, Scrow
Conrod ...
,, Lirrer-Big End
. Boit- Loching Washer
Nut-Elig End
. Bush- Small End ...
No.
off
I
I
I
2
I
I
I
1
4
2
pr.
Cowl complete .
Cowl Side Plate
2
2
2
I
I
I
2
o
I
I
I
o
I
I
4
4
4
4
,
3
3
I
2
2
I
J
1
Corvl Side Platc liixing Sorew
,, Base Fixing Nut
. Top Fixing l3olt Washer
Crankcase
" Tappet Ilush
. Bush-Magneto Drive ...
,, Plug
,, Stud-Cylindor Irixing ...
-Cover Plate Fixing
-Governor Cover Fixing ...
--Tank Bracket Fixing
-Magneto Fixing ...
,, Vacuum Valve Grating ...
,, Disc
,, Shield...
":, :, ':, ",, "Tihl"å:}å ..:
,, Ilearing-FlywheelSide...
Retaining Screw
Seal l--lywhccl Sido ...
It is essential to quote the Engine Number with all syrnbols when or<lering spares
owing to the difierent Dngine parts 6tted to various customers' equiprnent.
Failure to do this rnay result with incorrect spares being supplied.
Cugtomers' Patterns not returned unless specially requosted. Pacr 29

47 21545 Crankc:rse Bearing l)late-I)riving Side
49 19612 . Bearing-Driving Sitle ...
!9 21r!7 Seal-Driving Side
50 14664 Ptate Gasket ...
11 ?qq ,, !.ixing Nut
52 21931 Crankshaft
53 16729 . Key-pinion Fixins
54 18431 ,, ; -tilyrvheel Fixine ...
t3_4_ lqql -Diiving Sidc
55 19633 ,, Pinion
Illus. Part
No. No. Title
56 16447 C1'lin<Icr Ilarrel with Valve Guitles ...
!Z l6lij3ll Sturl-sitencer l;i.tirrg-'top
57 1qi93 ,, -Silenccr j'ixi1[-l)ottom
58 12864 ,, -Head }ixine
59 14624 \/alve Ilox Cover "...
60 14625 ,, Gasket ...
ql \4q9? ,, rrixing Bou
qq ?ry Fixing Nut
64 16448/l ,, Head
65 16449 Gasket...
t: l8?lq Fixing Stud Washer...
B7 285 ,, - Nut
19704 }rrrr-r nnc
: \e-t9! ,, Nut-Long...
68 16443 Flywheel Fan ...
69 16531 Distance Piece
o
6
4
I
t
6
4
2
70 l?qqs Fixing Nut
* 14076/l Extractor Ilolt
7l l46ii ', Starter Boss :.: :::
7? _299q ,, Fixing ltott ...
73 12893 ,, DriviRorl
- S^2511S Govcrnor (iea,r Assombly, coml>risiug itcrns 74 to 7g
74 16896 Governor Gear (not supliiied soparatoly)
7_l t30l?1r . wcight .:.
7B 12899 - Fulcrum pin
7_7 14668 ,, Driving Spiltlle (rrot supplierl separately)
79 lq44e , Gear Tåpdr Peg ' ... ^:..
79 _2?55! . Actuating noa
qq SA?9!! - Cover Åsiembly
81 12840 Gasket -
8^? , ._917! Fixing Nut ...
8? \!7_79 n , Friction Ptrr"g
q1 189?q1l ptunger ...
qq 147_7-2 spriilg
86 14771 Lbct<riut...
87 14762 . Lever-Start ancl Ilunninq
88 16620 Washer .:.
99 ^ UZqq Fixing Bolt
90 5A2926 ,, Control Arm-Iinclucles itern g1 ...
18315 ,, \Å/asher
91 16692 - Fixins Screw
9! 18744 Spring .:.
gq l4ggq ',, - Prungcr
91 !4997 Adjusting SCrew ...
95 14098/l - Locknut
It is essential to q-uo-te the Engine Number with all syrnbois when ordering Spares
owing to thc dificrent Engine parts fitted to various customers' eguipniient.
Failure to do this may result with incorrect spares being supplied.
Customers' Patterns not roturnod unless specially requcrtod.
Pccr 30
Illus, Part
Ir,Io. No.
96 SA343B
22394
18317
16163
14872
285
* MA3143
100 Magneto
Title
Inlet Pipe with Ilelease Tap & Washer
,, llclcasc llap
__-'"'_-" '*t
llolcase Tap Washcr
Stud*-Carburetter Fixing
Gasket
liixirtg Nut
H,T, Lead Complete, 13|"...
Fixing Washer
Nut ...
,, Driving Coupling
Petrol Tank with Cap
2
. Gasket
, Fixing Nut ...
Spanner--Engine-fi' x f"
. -Cylinder Head
,, -Sparking Plug
,, Tommy Bar
Sparking Ptug ...
,, " Sopp."sso. & Protecior ::: :::
Starting llandle Complete
Tappet ... 2
Throttle Lever and Link Assembly ... I
'I'itrottle Levcrs and [-ink Fixing Screrv (I3ottom) I
Valvo 2
. Errd Cap 2
,, Shim... 2
,, Guide--Inlet and Exhaust 2
,. Cotter ... 2
,, Spring ... 2
Collar-Top 2
- -Bottom 2
I
I
1
2
1
I
1
No.
off
1
I
I
II
2
I
I
.,
o
18316
l0l 285
102 12E61
103 SA3362
104 SA3370
22284
r05 sA3469
106 12905
107 285
l0B sA3427
lll I\rA3129
r 13 18617
114 SA2592
- sA3l08
ll5 19541/1
116 22202
tt7 1s276
21656
il8 9902
ll9 11676
120 19105/1
rzt t4871
122 285
5512
16579
14967
1681 I
r23 18593 /2
r24 21267 12
- s43493
125 16491
127 SA33l0
i9379
128 14202
126 1672r
13090
r29 5408
130 12930
t3l 7720
133 16720
132 5502
I
2
When Oil Bath Air Iiilter is litted the following parts arc ncccssary :
- M43144 Air Irilter (Oil Itath Type)
16925 Clip...
19109 Eiborv
19130 Iilbow Ciip ...
- 21306/1 Supoort
19687 Stcacly
- 1396,./1 Carburettcr Gasket (Iixtra) ...
It is essential !o qggte the Engine Number with all symbols when ordering Spares
owing to the dif{erent Engine parts litted to var.ious customers' equipnieni.
Irailure to do this may result with incorrect spares being supplied.
Cugtomers' Patterns not returned unless specially requested.
,, Filler Cap
;, ,, .^ Scaling Wa.iiåt
,, Fixing Bracket ...
Pecs 3l

(
Illus Part
No, No,
I 18s64
2 141 19
3 1980s
4 10341
5 16590
6 5A2764
7 16583
B 18661
I 284
l0 13962
l1 16897
t2 13972
13 11957
- MA3142
l5 13961/l
7998
16 285
17 19517
l8 sA29t2
2t 19435
19 19749
20 6731/r
25 18480
26 18473
27 18546/1
- 22748/2
28 22842
29 13945
30 1658r/4
18316
3l 285
32 18308
9682
33 19753 14
34 18610
35 12888/1
36 6627
37 7544
11960
38 18662/2
39 6933
40 19621
41 16361
6374
4085
42 16732
1 7690
43 10010
12836
MODEL 5 SPARE PARTS LIST
Title
I3ase--Iingine ...
,, Gasket ...
,, Oil Trough
,, ,, Filler Tube
,, Cap and Dipstick ...
,, ,, Drain Plug...
,, Fixing Stud
,, Nut
" Stud-CowI Fixing
No
ofr
I
I
2
I
2
I
I
2
c
,
t
I
2
I
I
Camshaft Spiudle
Carburetter End Cap
Flange Gasket ...
Fixing Bolt
,, Nut
Choko Lever Bracket
,, Lever
Screw
Liner-Big End
Conrod
o
pr.
. l:]olt- Locl<ing Washer
Nut-I3ig End
,, Ilush-Small End
CowI
,, Base Stud Washer
,, Base Fixing Nut
,, Top Fixing Bolt Washer
Crankcase
,, Tappet Bush
,, Bush-Magneto Drivo
. Plug
,, Stud-Cylinder Fixing ...
-Flywheol Boaring Plate Fixing...
-Driving Bearing Plate Fixing ...
-Q6y6p11e1 Cover Fixing ...
-T:rnk Bracket Fixing
-Magoeto Irixing ...
,, Vacuum Vale Grating ...
,, Disc
. Shietd Fixing Washer ...
Fixing Screw
,, IJearirg Plate-Flywheel Side ...
4
4
4
4
4
.)
3
3
I
.,
a,
I
It is essential to quote the Engine Number with all symbols when ordering sparee
owing to the difierent lingino parts fitted to various customers, equipment.
Failure to do this may result with incorrect spares beiug suppliecl.
Customers' patterns not returned uulesa specially requested.
Pe,cr 32
,, Koy-Pinion Irixing
4
t
-Irl1'whecl Fixing
-Driving Side
,, l)inion
Cylinder Ilarrcl with Vzrlvc Guidcs ...
,, Stud- -Silonccrl?ixing
-lnlet l)ipc liixing
-l{ead Fixing
,, Valvo Box Cover Gaskot
llage Gasket .. .
,, Fixing Nut
Head
,, Gasket
Fixing Bolt
Flywheel Fan ...
Fixing Nut
Extractor Bolt
,, Starter Boss
,, Fixing'bott... ... ...
,, Drivc llod
Governor Gear Asser.ntrly Tncorpora.tes Items 74 to 79
Governor Gear (Not Supplied Separ ately) . . .
,, Weight Fulcrum Pin
,, Driving Spindle (Not Supplied sepa.rately)
,, Gear Taper Peg
,, Actrrating Rod
,, Cover Assembly
Gasket
Fixing Nut...
,, Friction Plug
Plungor ...
Spring
Locknut
. I-ever-Start antl Running
Wagher
Fixing Itolt
. Control Arm Includes Item gl
. Fixing Screrv
It is essentral !o qggte the Engine Number with all symbols when .rdering S1;ares
owing to the difrerent Engina parts litted to various customers,equipmen[.
Faiiure to do this may rosult witir incr:rrect spares beilrg supplied.
Customers' Patterns not returned unless specially requested.
Illus. Part
No. No.
44 19728
46 12838
12837
12841
285
47 19644
48 19728
4S 12906
12907
50 12842
5l 284
52 19963
53 t6729
54 16712/1
134 16072
55 19643
56 14869 /2
57 16163
16163
58 16199
59 14853
60 12847
61 10341
62 12845
63 303
64 12884/4
85 14825
86 16872
9682
a7 284
68 12852
70 12859
- 14076/t
7t 13920
v2 5165
73 12893
- sA30275
74 19850
7s 130s9/1
76 12899
77 12872
78 13449
79 22551
80 sA2645
8l 12840
82 3574
83 14770 11
84 18625 /l
85 14772
86 14771
87 14762
88 16620
89 147s8
90 sA2930
9l 16692
92 18723
No.
Tttle Otr
Crankcase Bearing-Irlywheel Side... I
Seal-Flywheel Side ... I
.Cupl
I'late Gasket-Flywheel Side.. I r r6us sd§Åsu-r'ty wlscr oruc.. I
,, Fixing Nut 4
,, Bearing Plate-Driving Side
,, Bearing --Driving Side ...
Seal
,, c,,p
Plate Gasket ...
,, Irixing Nut
Cranksha{t
Spring
2
4
2
I
4
I
,
I
t
2,
P,r<;s 33

(
Illus. Part
No. No.
93 14096
94 14097
9s 14098/1
96 SA{14s9
22394
18317
98 14872
285
- M43143
100 18316
101 285
t02 12861
,03 sÅ3362
t04 sA3370
22284
19620
105 sA3470
106 12905
t07 4082
108 SA3427
111 MA3129
t t3 18617
l14 sA2583
SSAl7
115 20987
116 6637 /2
tt7 19275
21502
118 12886
119 11677
120 19105/1
tzt 14871
122 285
55 12
5210
12353
14967
1681 I
123 i8593 /2
r24 21267 12
- sA3493
t25 14994
126 16001
I6925
19109
19130
- 2130611
Tltle
Governor Control Spring Plungor ...
Adjusting Screw...
rnrJi eipe #tr n"r"uJL'r.n d'rv.L3,ili"'::: ...
Releasc Tap...Washer
Gasket
Fixing Nut
Magneto
,, I{.T. Lead Complete 16" ...
,, Fixing Washer
Nut...
,, DrivinS; Coupling
Petrol Tank rvitir Cao
,trol Tank rvith Cap
Filler Cap
,, Sealing Wzrsher
,, Fixing Bracket Distance Piece
,, Fixing llracket ...
,, Gasket. ..
,, Nut
I.ixing Strap Assembly
,, liilter and Tap...
Washer...
,, ripu with llnions ::. ... ::: :::
Piston Assembly, Inc{ucling items 1I5 to 119
Piston...
,, Iiing'-Compression
-Compression,'fop Groove
-Oil Scraper, Ilottoin Groove...
,, Pin Circlip
Silencer ... :.. ..: .::
, l;laugc Gashct
No.
ofr
I
2
4
I
2
I
I
o
,, Irixing Nut ...
Spanner--I,)ngine --1S' x |"
,, -_)ingine--{'
,, -Cyiinder Head
,, -SparLing Plug
,, Tommy Rar
'fappet ...
,, Head
Sparking Plug Suppressor & Protector
Starting Handle Cornplete 2
2
- 16000 ,, Disc ...As t(eq'd
127 5L3072 fhrottle Lever and Linh Assembly ... I
I 19379 ,, Iiixing Screw (Bottom) I
l2B 14818 Valve 2
129 14816 ,, Guide--Inlet and llxhaust 2
130 12856 ,, Cotter ... 2
16092 ,, Spring-Inner ... 2
131 12854 -Outer... 2
132 12855 Collar... 2
When Oil Bath Air Filter is fitted the following parts are necessary :
- nIA3144 Air Fiiter I
Clip ... I
Elbow I
Elbow Clip 2
Support I
- 22574/1 Steady I
- 13961 /l Carburetter Gasket (Extra) ... I
t is essential to quote the Engine Number *'ith all symbols when ordering Sparos
orving to tire diilerent Engine parts litted to various customers' equipment.
Failure to do this rnay result with incorrect spares being supplied.
Customers' Patterns not roturned unless speciaily requosted.
P,ror 34
MODEL 6 SPARE PARTS LIST
Illue. Part No,
No. No. Title Ofi
I 18563 Baso-Engirro ... I
2 13934 ,, Gaskot... I
3 19927 " Oil Trough I
4 10341 ,, Fixing IJolt 2
5 16590 ,, . Filler Tube I
6 5A2766 - C.p and Dipctick ... I
I 18727 ,, Fixing Stud-Short-Rear ... 2
-: 18895 , -I-ong-Iiront... 2
I 5005 . Nut 4
10 13962 . Stud-(brvl Fixing 2
II 16916 Carnshaft
l2 13910 ,, Spindlo
13 11957 End Cap ...
* M43142/2 Carburotter
f5 13961/1 - Flango Gaeket ... I
7998 ,, Fixing Bolt 2
16 285 Nut z
l7 19517 i Crråtu Lever Brackot ... .:. ..:
lB SA2912 Lever
2t 1943s
l9 19749
20 6731/r 20 6731/l Locknut ... I
25 1B4Bl Conrod ... I
?9 18475 . Liner-Big End I p..
27 r8609/t - Ilolt- 2
- 22748 14 Locking Washer 2
?{ 22843 ,, . Nut-Big rod 2
29 6526 ,, Bush-Small End I
SA 16582/2 Cowl I
18316 ,, Base Stud Washer z
31 2BS Fixing Nut 2
32 18308 . Top Fixing I3olt ... 2
9682 Washor 2
33 19743 Crankcase I
34 13872 ,, Tappet Bush 2
35 12888/1 ,, Bush-IWagneto Drivo I
36 6627 ,, Plug ... I
37 7544 . Stud-Cylinder Fixing ... 1
: I 1960 -Flywheel I3earing plate Fixing . .. 1
qq n222 -Diiving Bearing"Plate Fixing-... 4
q9 99ry -Governor Covei Fixing ... '- 4
19 l9q2! -'Iank Bracket Fixing ... I
It is essential to quote the Engine Number with all symbols whon ordering Spares
owing to the difierent Engine parts fitted to various customers' equipment.
Failuro to do this may result with incorrect spares being supplied.
Cuctomers' Patterns not returned unless specially requestod. Pecr 35

(
Illus. Part
No. No. No.
otr
.. 3
.. .t
.. I
o
.. 2
Title
6374 Crankcase Vacunr:r Valve Gratirrg ...
52 16735 Crankshaft
53 16729
54 167t2/l
134 16072
55 16917
Disc
,, Sirield
,, Shield Fixing Washcr
,, Ii-ixirrg Screw
Ilearing Plate-Flyrvheel Side ...
,, -Iilywhcel Sirtc ...
Seal-Iilywheel Sidc ...
,, Crip-lrlyrvtreet §iae .
Plate Gashet -Irlyrvheel Sido
,, Plate llixing Nut
Ilearing Plate -Driving Side
,, --DriviugSirle ...
Seal
,, c,rp
Plate Gasket ...
,, Fixing Nut
xeylplrlll p1*i,r* .
,, -Flywheel l.ixirlg
4085
42 16732
17690
43 10010
13923
44 I8339
46 13928
13926
12841
285
47 139s7
48 18339
49 13927
13925
50 13933
51 284
57 16163
16163
sii 16203
59 14855
60 13943
61 10341
62 1393s
63 303
64 13916/6
65 748,)7
66 16873
9682
-I)rivirrg Side
,, Pinion
56 14831 Cylinder Ilarrel with \rah.e Guides
Sltud -Silcncer Fixing
,, -Irrlet l']ipe Fixing ,2
2
(i
2
r.l
6
2
I
I
I
2
2
-I Iead liixing
,, \ralve Box (lover
alve l]ox (lover
Ilase Girskert...
I'Iead Iii-xing Nrrt
( ia sli cl:
(iasket
Screrv
67 284
68 13918 l,'I\rwheel Iial
,, liixing llolt ...
and Stud Waslrer
Stir<l Nut
,, Irixiug )'lut
,, llxtractor llolt
Starter lJoss Firing nolt ...
70 13929
- 14076/1
71 13920
72 5165
73 12893 ,, I)ri\.e. Itod
-SA3028.S Governor Gear A-ssembly-Co_morising Itcms 74 to 79
74 19851 Governor Gear (Not Supplicd Scparaiely) ...
75 13059 ,, Weigi.rt ...'
76 12899 Fulcrurn [,irr
7,7 12a72 ,, l)riving Spindle (Not Supplied Separately)
78 13449 . Gear Tåper pcs ... -...
79 22554 ,, Actuating Iiod
B0 5A2647 ,, Cover Assenrbly ...
81 13938 Gasket
9? 3574 Irixing Nut...
g? 14770ll . p.itto"'nl,?^'-".:. .:: ::: .::
84 18625/l Pluiger ...
95 14772 Spring
86 14771 Lbcknut...
87 14762 ,, Lever-Start and Running
88 16620 Washer .:.
89 14758 ,, Start and Running Bolt...
It is essential to qrl.o-!e the -Engine Number with all symbols when ordering Spares
owing to the different E'gine parts fitted to vari<rus customers' equiDment
Failure to.do this may result with incorrect spares being supplied.
Customers' Patterns not returned unless specially .eqrested- -
Prcn 36
IlIu§. Part No,
No. No, 'fltle Off
90 SA2930 Governor Control Arm-Includes Item gl ...
91 1q992 ,. Fixing Screw
?2 19609 Spring ...
93 14096 ,, - Ptunger
?! 14097 Artjusting SCrew...
9l ryO?q1l Spiing Aåjusting Screw Locknut
96 SA3440 Inlet Pipe rvith tlclcase Tap-& Waiher
98 14836 Gasket t
285 Fixing Nut 2
- MA3143 l{agneto I
100 ,, H.ll. Lead Complote, 16" ... I
:- 18316 ,, Iiixing Washor - ... 2
101 285 Nut... 2
l0? _ 1?q6! ,, Driving Coupling I
103 5A3362 Petrot Tank rvith Cali I
104 SA3370 Fillor Cåp t
22284 Cap Soaling Washer I
19620 tiixing l}riri:litrt l)istance Piece I
105 SA3470 Fixing tlracket... I
106 12905 (iasket... 2
107 4082 Nut 4
108 SA3427 l;ixing Strap Assembly 2
1l I MA3129 ,, Iilter
I 13 18617 Washer ...
22394 ltelearscl'ap
n4 s,\3087
SSA24
115 19543
116 6638/2
lt7 19274
21607
I 18 9910 ,, Pin
ll9 11677
120 19106/1 Silencer
l2r 14826
t22 285
5512
5210
16000 ,, Disc 2
127 SA3079 'l'hrottle I-ever and Link Assembly ... I
12353 ,, Cylinder Head
14967 . Sparkine Plus
tt 16811 . :r'orn-y"nui' ..: ::.
123 18593/2 Sparking Plug...
124 2L267 12 Suppressor & Protector I
- SA3493 Starting Handle Cornplete I
125 14995 Tappet ... 2
126 16001 ,, I.Iead ... 2
.- 19?29 ,, ,, Fixing Sircw_I3ottorn ... 1
128 14828 Valve 2
129 14816 ,, Guide-Inlet... I
- 14816/1 -Exhaust I
130 12856 ,, Cotter ... 2
131 16092 . Spring-Inner... 2
12854 -Outer ... 2 LAOO* -\JUIer ... 2
132 12855 Cottar... 2
When Oil llaLh Air Iiiltcr.is fitted the following parts ar.e necessary :
- f,L\3144 Air liiltcr-Oil J3ath Type 1
16925 Clit) . .. I
19109 Elbow I
19130 Jllbow Ctip 2
-- 213AGl1 Support -... 1
- 13961 /1 Carburetter Gasket (Extra) ... 1
rt is essential t9 qg.o-!u the *Engine Number with all symbols when ordering spares
owrrrg to the different ,E"git" parts fitted to various customers' equipinent.
Failure to.do this may result with incorrect spares being suppliod.
Customers' Patterns not roturuod uole$ specLllv reouestedl -