Saito FG-61TS User manual

Note:
●Asitusesoilmixedfuel,planesometimesmaygetdirtybyexhaust.
●Usereliableandwellbalancedprop,otherwiseitcauseabnormalvibrationandmayresultinseriousaccident.
●Duringoperation,thescrewsallovertheenginecanbeloosenbyheatexpansionofmetal.Tightenthemup
occasionally.
●Whentheexhaustvalvegetsdullbycarbonorsludgeespeciallyincoldatmosphere,removetherockercover
andapplysomeanti-rustspraytotheexhaustvalvetohelpthevalvetomovesmoothly.
●Allresponsibilitiesfortheuseoftheengine,andotherobligationsandresponsibilitiesbasedonlaws,regula-
tions,etc.arebornebythepurchaserandtheuser,andSAITOSEISAKUSHOCO.,LTD.isexemptfromany
responsibilities.
Warranty:
●Ifthereisanydeficiencyfromthefactoryconcerningmanufacture,pleaseconsulttheshopordistributoryou
boughtfrom,sothatourcompanywillrepairthemwithresponsibility.Anyfailureortroublecausedbyunnec-
essarydisassembly,modification,orotherusesthanthoseprovidedintheinstructionmanualisnotsubjectto
thewarranty.
Φ37.2mmx2 28mmx2 60.9cc
D21”~23”xP10”xP11
・Filterwithweight[G36-154] ・DurabletubeforGasoline(1m)[G36-155]
・Aluminumspinnernut[57T-30] ・Tappetadjustingkit[120S-161] ・Digitaltachometer[G17-167]
Bore
Mainbody:2,090g/Muffler:100g/Ignition:170g
Stroke Disp.
Weight(Approx.） Practicalspeed Approx.1,500-7,400rpm Maxonground Approx.6,200-7,400rpm
Propeller CM-6Plug
Optionalparts
Gasoline50㏄classApplications
BatteryforignitionsystemVoltage:6-9V,higherthen1,000mA(2CLipoor5CNiMH)
・Limitgauge(0.1t)fortappetadjustment1pc ・Spannerfortappetadjustinglocknut1pc ・Carburetoradjustmentbar1pc
・Sparkplug[CM-6](Attachedtotheengine)2pcs ・Mufflerset  1set・Chokebar  1pc
・Ignitionsystem（w/sensor） 1set ・Mufflerbracket 1set・Plugwrench  1pc
・Standoffmount1set ・Anti-looseningnut 1pc ・Hexagonalwrench 1set
Specifications
FG-61TSInstructionManual
4.Needlereferenceposition(SetAfterBreak-in)
●Mainneedle：Approx.2.5~3turnsfromfullclose
●Slowneedle：Approx.4~5turnsfromfullclose（Thenthrottleshouldbefullyclosed）
●Actuallythebestconditionoftheneedlevariesdependingontheprop,temperature,humidityandso
on.Pleaseadjustseeingtheengineperformanceduringflight.
5.Tappetadjustment
ThevalveclearanceshouldbecheckedandadjustedafterBreak-inandeveryafter2hourswhilethe
engineiscold.Beforeadjustingtappetgaps,tightenupthescrewsaroundcylindersetc.
1.Removethesparkplug
androckerarmcoversofa
cylinder.Thenturnthe
propCCWbyhandto
placethepistonatTDCof
compressionstroke.
2.Loosenthelocknutand
adjustthegapbyhexago-
nalwrenchuntilyouget
thecorrectgap(Rightpic)
forbothofintake&
exhaust.
3.Oncethegapisset,
tightenthelocknutand
attachtheplugand
covers.Thendothesame
adjustmentfortheother
cylinder.
4.Turnthepropbyhandto
checkifthecompression
isenough.Ifthegapisless
than0,thevalveisalways
openedsightlyandlose
compression.Thenadjust
again.
CorrectGap
Mustnotbeinserted
Closeto“0”withnolimit
Limitgauge
(0.1mm)
2.Ignition
●Ignitionarrangement-Placethemainunitasfarfromotherelectricaldevicesaspossible.
(1)Plugcord（meshedhightensioncord)
2cordscompatibileforleft/rightcylinder.Insertthecaps
deeplyintoplugstomakesuretheywonʼtcomeoff.
(2)Sensorcord
Connectwiththecordfromthesensorattachedtothe
engine.
(3)Batterycord(black/redcord)
Useafullychargedbatterythathasadequatespec.(6-9V,
morethan1000mAisrecommended.).Betweenthebattery
andmainunit,makesuretosetaheavydutyswitchwhose
capacityishigherthan3A.
(4)Tachometercord
Connectthedigitaltachometer(Option).Otherwisethe
connectorisnormallyvacant.
Plugcap
Switch（morethan3A）
Sensor
(2)Sensorcord
(1)Plugcord Mailunit
(3)Battery
cord
(4)Tachometercord
Recommendedbattery
Voltage:6-9.0V
Capacity:1,000mA~
3.Methodofchoke（Noneedwhenyouusestarter）
●Inadvance,makeathinholeonthecowlingtoinsertthechokebar/
slowneedleadjustmentbar.
●Whenchoke,besuretoturnofftheswitchoftheignitionsystem.
●Asshowninthefig,passthechokebar(withM3.5threadonitstip)
thoroughtheholeonthecowling.Thenturnthebartoinsertintothe
M3.5internalthreadatthecenterofthethrottlelever.
●Pullthechokebarandfixitwithacliporclampwithfullthrottleas
showninthefigsothatitmaynotgobacktothepreviousposition.
●Graspthepropbyhandandturnittotheforwarddirection(CCW)for
severaltimes,untilthecarburetorgenerateshissing-likesound.After
hearingthissoundforabout5times,quicklyflickthepropbycrackingit
some10times.Thenchokingisdone.
●Afterthat,removethechokebar.Afterthat,powerontheignitionsystemandflickthepropquicklytostarttheengine.
Iftheenginedoesnʼtstart,repeatthechokingprocedure.
Cowling
chokebarforinsert
M3.5screw
Throttlelever
Throttlevalve
（Movetotheleft）
Slowneedle
chokebar
Temporaryfixed
byaclip
ForCCW
Makerich Main
needle
ForCW
Open
Throttle
lever
Slowneedle
CCW
Rich
CW
Lean
Mainneedle
Throttle
lever
1.Fuel
●Thefuelismixtureofcommercialregulargasolineandreliableoilfor2-strokeengines.
●[Exampleofoilrecommendation]
・KlotzKL-200OriginalTechniplate ・DeluxeMaterialsPowerModel2T-Setc.
●Besuretousethemixture“gasoline:oil=15~20:1”byvolumeratio.(Ex.1000mlofgasolineshouldbemixed
withmorethan50mlofoil).
●InBreak-inprocess,use15:1mixedfueltoensurethebestlubricationforinitialrun.
●Anydamagecausedbythefuelused,inwhichtheoilratioislowerthan20:1ratio,isnotwarranted.
●Donotusegasolineethanolmixed.Itmaycausenotonlypowerlossbutalsocorrosioninsidetheengine.
Firewall
Standoffmount
Cutout
Fueltank
Fuel
level
Tooutside
Airinhalationpipe
ToCarbnipple
Fuelfeedingpipe
Airinhalation
pipe
Rubbercapfor
gasoline-resistant
Gasoline-prooftube
Filterwithweight
Setthecanter
ofthecarb
slightlyupperthanfuellevel
Closeaspossible
Standard
accessories
3.Break-inMOSTIMPORTANT!!
●Prop-recommendation:APC-22x10forBreak-in.
●Use15:1oilmixedfuelforBreak-in.
●NevermakethefuelmixtureleanduringBreak-in.
Itcouldcauseseizureevenduringidlingorlowspeedrunning.
●Beforestarttheengine,openthemainneedleApprox.3turns
openfromfullclose.
●Starttheengine(usingastarterisrecommendedforsafe).
●Runforabout10secondsinlowspeedtowarmup.
●Openthrottlegraduallyuptooverhalfopen,inthemeantimeopenthe
mainneedlesometurns.Continuetoopenthemainneedleuntilthe
speeddropandgetsdull,wherethethrottleopenedoverhalf.
●Ifitcannotmakerichbyopeningbymainneedle(rpmdoesnʼtdrop),
thenopenslowneedletoo.
●Runinthisveryrichconditionfor2tanks.
SAITOSEISAKUSHO,CO.,LTD.www.saito-mfg.com
22-7,3-chome,Tokagi,Ichikawa-shi,Chibaprefecture272-0024,JapanPhone:047-378-4156FAX:047-378-4155
FG-19R3InstructionManual
Allspecificationsandmodelsaresubjecttochangewithoutnotice.

No. Item Qty No. Item Qty
01 Cylinder（Left） 1Rockerarmscrew&Nut
02 Cylinder（Right） 1 42-1,-2
06 Piston 2 43 Rockerarmscrew&Nut 4
07 Pistonpin 2 44 Rockerarmbracket,left 2
08 Pistonpinretainer 4 45 Rockerarmbracket,right 2
09 Pistonring 2 46 Valveset（吸気＆排気） 4
10 Connectingrod(conrod) 2Valvespring&Keeper&Retainer
13 Conrodscrew 4 47-1,-2,48
Cylinderscrewset 48 Cotter(Valvespringretainerrock) 4
14-1,-2,-3,-4 49 Rockerarmcover 4
15 Crankcase 1 69 Intakepipe,left 1
17 Rearcover 1 70 Intakepipe,right 1
19 Breathernipple 1 78 Mufflercomplete 2
20 Frontballbearing 1 80 Mufflernut 4
21 Mainballbearing 1Carburetorcomplete
22 Rearballbearing 1
82-1-1,-1-2,-1-3,-1-6,-1-7,-1-8,
-1-9,-1-10,-1-11,-1-12,88,93
23 Crankshaft 1Carburetorbody,assembly
Tapercollet&Driveflange 82-1-1,-1-2,-1-3,88
27-1,-2 88 Throttlelever 1
Propwasher&Nut Carburetorscrew&springset
28-1,-2,-3 82-1-9,-1-10,-1-11,-1-12
Crankcasescrewset Carburetorgasketset
31-1,-2,-3,-4 82-1-6,-1-7,-1-8
Enginegasketset 93 Intakevelocitystack 1
32-1,-2,-3,-4,-8,-9 Enginemountset
33-1 Camgearhousing 1 95-1,-2,-3,-4,-5
33-2 Camgearhousing(right) 1Mufflerbracket
34 Camgear,left 1 99-1,-2,-3,-4,-5,-6,-7,-8
35 Camgear,right 1 110 Antilooseningnut 1
36 Camgearshaft 1 120 Sparkplug（NGKCM-6）2
Steelwasherset 128 Heatsink 1
37-1,-2 140 Mufflerrightangleadapter 2
38 Tappet（valvelifter） 4 152 Screwpinfordriveflange 1
39 Pushrod 4Electronicignitionsystem 1set
Pushrodcover&Rubberseal 153-1,-2,-3,-4
40-1,-2,-3 Intakemanifoldassembly 1set
41 Rockerarm 4 164-1,-2,-3,-4,-5,-6,-7
164
153
37 1set
40 1set
32 1set
95 1set
99 1set
28 1set 90 1set
31 1set 91
1set
82-1 1set
83-1 1set
27 1set
42 1set
47 1set
14 1set
14-3
49
42-2
41
37-2
43
14-2
48
47-2
14-1 02 09 06 0807 10C
01 120
95-495-231-3
95-195-3
1732-3A2221
128
31-4
19
3436A
37-1 32-1
33-1
31-2
31-1
38110
28-2A
28-3
28-1
27-2
27-1
20
23
152 40-3
40-1
39
40-2
44
42-1
46
47-1
32-8
15
13
32-2
33-2
35
45
95-5
78
140
80
153
153-1
153-4153-3
153-2
99-5
99-4
99-8
99-6
99-199-7
99-2
99-7 99-3
99
60
53
103
35
134 68.5
32.2 6
49.551
38
M10x1.25
78
66
(97)
(85)
4-Φ5.2
82-1
-1 82-1 -11 82-1 -8 82-1 -9 82-1 -12
93
82-1
-2
82-1
-3
88B
82-1
-6
82-1
-7
164-7
164-5
6932-432-9
70
164-3
164-1
82-1
-9
82-1
-10
164-6164-4
128
164-2
14-4