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.

Saito FG-61TS Specifications

General

Brand	Saito
Model	FG-61TS
Category	Engine
Language	English