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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
