Saito FG-60R3 User manual

32.0mmx3 25.0mmx3 60.32cc
D21"xP10"~D23"~P8"
1/4-32SP-1orSP-2sparkplug
・Filterwithweight[G36-154]・Rubbertubeforgasoline(1m)[G36-155]
・Aluminumspinnernut[G57T-30]・Tappetadjustingkit[30-161]・Digitaltachometer[G17-167]
Bore
Body:1,800g/Mufflers:90g/Ignitionsystem:195g
Stroke Disp.
Weight(Approx.)
Practicalspeed Approx.:1,500-7,000rpm MaxonGND Approx.:6,000-7,000rpm
Approx.30cc/min(Atfullthrotle6,500rpm)*Fuelflowvariesdependsuponprop
load.Morefuelflowwithlargerloadandlessfuelflowwithsmallerload.
Propeller
Plug
Optionalparts
Standard
accessories
2stGas-engine50ccclassApplications
Batteryforignitionsystem
・Limitgauge(0.1t)fortappetadjustment 1pc ・Plugwrench   1pc
・Wrenchfortappetadjustinglocknut 1pc ・Hexagonalwrench1.5mm 1pc
・Sparkplug[SP-2](Attachedtotheengine) 3pcs ・Mufflerset   1set
・Ignitionsystem（w/sensor）  1set ・Standoffmount39.5mm  4pcs
Fuelconsumption
Specifications:
FG-60R3InstructionManual
FuelTank FuelLevel
ToOutsideoftheplane
Ventline
fuelsupplytocarburetor
Fuelfillerline
Ventline
Gasoline-compatible
tankstopper
Gasoline-compatibletubing
Filterwithweight
Setthecenterofthecarb
slightlyabovethefuellevel
Closeaspossible
Approx.30mm
Hollow
out
Standoff
mount Firewall
1.Fuel
●Thefuelisamixtureofregulargasolineorhigh-octanegasolineandhigh-quality2-strokeengineoil.
●[Exampleofoilrecommendation]
 ・KlotzKL-200OriginalTechniplate・DeluxeMaterialsPowerModel2T-S・ENEOSRACINGSPECPRO-2T(SAITOSTANDARD)etc.
Ifsuchoilsarenotavailableinyourcountry,thenpleaseasktheofficialSAITOdistributorinyourcountryforanalternative.
NEVERuse“cheapoil”designedforutilityenginesforbrushcutter,lawnmower,orchainsaw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).
●Duringthebreak-inprocess,use15:1mixedfueltoensurethebestlubricationforinitialrunning.
●Anydamagecausedbythefuelused,inwhichtheoilratioislowerthan20:1willnotbecoveredbywarranty.
●Donotusegasolinecontainingethanol.Itmaycausenotonlypowerlossbutalsocorrosioninsidetheengine.
2.Ignition
●Placethemainunitasfarfromotherelectricaldevicesaspossible.
●PlacethetwoswitchesoftheignitionandtheRCreceiverasfarfrom
eachotheraspossible.
(1)Plugcord(meshedhightensioncord)
Inserttheplugcapof(1)Plugcorddeeplyontotheplugof#1cylinder
tomakesureitwillnotcomeoff.Theothercapsandplugsshouldbe
installedbythesameway.(Refertocylinder#onthereverseside)
(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.(6-8.4V,morethan
1500mAisrecommended.).Betweenthebatteryandmainunit,make
suretoinstallaheavydutyswitchwhosecapacityishigherthan3A.
(4)Tachometercord(optional)
Connectthedigitaltachometer(Option).Otherwisetheconnectorisnormallyvacant.
3.Propeller
●TheStandardpropisMejzlikD22”xP10”whichbringsapprox.6,500rpm(orFalconD22”xP10”bringsapprox.6,000rpm).
Largersizeorgreaterpitchcancauseenginebrokenduetooverload.
●Useawell-balancedone.Neverusethepropellerthathasbeenscratchedordamagedevenifslightly.
●Asthepropelleriscompressedslightly,tightenthepropellernuteveryhourofoperation.
4.Break-inMOSTIMPORTANT!!
●Beforestartingtheengine,injectasuitableamount(approx.20〜30cc)ofengineoilintothe
lubricationnippleonthecrankcaseusingasyringeorpumpwhileturningthepropellerbyhand.
Afterthat,plugthisnipple.Asexcessisdischargedfromthebreathernipple,attachatubetothe
breathernipple.
●Prop-recommendation:D22”xP10”.
●Use15:1fuel:oilratioforbreak-in.
●Nevermakethefuelmixtureleanduringbreak-in.Itcouldcauseseizureevenduringidlingor
low-speedrunning.
5.Adjustmentofcarburetorafterinitialbreak-in.
◇Needlereferenceposition(Setafterinitialbreak-in)
●Starttheengineafteradjustingtheneedletothefollowingreferencevalue.
●Mainneedle：Approx.1+1/6~1+1/2turnsCCWfromfullyclosed
●Slowneedle：Approx.6~7turnsCCWfromfullyclosed(Thenthrottlevalve
shouldbefullyclosed)
●Actually,thebestpositionoftheneedlesvarydependingontheprop,
temperature,humidityandsoon.Pleaseadjustasnecessaryafterobserving
theengineperformanceduringflight.
◇Peakadjustment
●Afterstartingtheengine,warmupforapprox.30secondsatlowspeed.
●Achievethepeakatfullthrottle.
→TurnthemainneedleCWgraduallytothepositionwheretheRPMisgreatest(thepeak).ContinuingtoturntheneedleCWpastthepeak
couldleadtoseizuresoturnitslowlyandcarefully.IftheRPMsuddenlydecreasesafterpassingthepeak,instantlyturnthemainneedle
CCWtoagainincreasetheRPM.Otherwiseitcoulddamagetheengineseriously.
●OnceachievingpeakRPM,returnthethrottletolowspeed.Makeanoteofthepositionofmainneedleatthepeakatthattime.(Howmany
turnsyoudidCWbasedonthereferencevalue.)
◇SlowneedleAdjustment
●AfterachievingpeakRPM,nextisslowneedleadjustment.OpenthethrottlefromlowRPMtofullthrottlequickly.
●IftheenginehesitatesforamomentorstallsbeforetheenginereachesmaxRPM,Itʼsbecausethemixtureistoolean.Thenturntheslow
needleCCWslightly.
●IftheengineisslowtoreachpeakRPM(fullthrottleset),itʼsbecausethemixtureistoorich.ThenturntheslowneedleCWslightly.
●AdjusttheslowneedleasaboveuntiltheRPMfollowsthethrottlemovementsmoothly.Theimportantpointistoadjusttheslowneedle
AFTERthemainneedlehasbeenadjustedtoitspeak.
●Nowbreak-inatgroundlevelisdone.Adjusttappetsbythemethoddescribedlater.
◇Pre-flight/Flightadjustment
●Whentheslowneedleadjustmentisdone,checktheresponsebyrevvingupfromlowspeedtofullthrottlequicklyseveraltimes.
●OpenthethrottlefullyandturnthemainneedleCCWapprox.60〜90degreesfromthepeakposition.Thisistomakethefuelmixturericher
intheairwheretheRPMgethigherthanontheground.
●Afteralladjustmentsaremade,flyyouraircraftandfinetunetheengineaccordingtothesituation.Basicallytuningshouldbedonewiththe
mainneedle.Readjustmentoftheslowneedleisrarelyneededifthefirstadjustmentoftheslowneedlehasbeendonesuccessfully.
CW→Lean
CCW→Rich
CW→Lean
CCW→Rich
CCW→Rich
CW→Lean
Mainneedle Slow(Idle)Needle
(Adjustwith⊖screwdriver)
Slow
High
Throttlelever
CorrectGap
Mustnotbeinserted
Closeto“0”withnolimit
Limitgauge
(0.1mm)
Loosenthelocknut
Adjustthegapturning
thesetscrew
TopDeadCenter
（Thestatebothvalvesareclosed) Tightenthelocknut
tofixthesetscrew
6.Tappetadjustment
Thevalveclearanceshouldbecheckedandadjustedafterbreak-inandeverytimeaftertwohourswhiletheengineiscold.Beforeadjusting
tappetgaps,tightenthescrewsaroundcylindersetc.
1.Removethesparkplugand
rockerarmcoversof#1
cylinder.Thenturntheprop
CCWbyhandtoplacethe
pistonatTDCofcompres-
sionstroke.
2.Loosenthelocknutand
adjustthegapbyhexago-
nalwrenchuntilyouget
thecorrectgap(belowpic)
forbothofintake&
exhaust.
3.Oncethegapisset,tighten
thelocknutandattachthe
plugandcovers.Dothesame
adjustmentforthe#3-#2
cylindersinorder.
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slightlyandwill
losecompression.Thenadjust
again.
Note:
●Asitusesoil-mixedfuel,theplanemaysometimesgetdirtyfromtheexhaust.
●Useareliableandwell-balancedprop.Otherwiseitmaycauseanabnormalvibrationandcouldresultinaseriousaccident.
●Duringoperation,allenginescrewscanloosenduetometalheatexpansion.Checkandtighten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.
●Payattentiontothesurroundingssoasnottodisturbothersbynoiseandexhaust.
●Alwayskeepspectatorsbehindtheenginewhenoperatingtheengine.
●Asexhaustsmokeisharmful,becarefulnottobreatheinorotherwiseexposeyourselftoitsharmfuleffects.
●Payattentionnottotouchtherotatingpropellerwhenstartingengine,andmovetorearsideoftheaircraftoncetheengineisstarted.
●Allresponsibilitiesfortheuseoftheengine,andotherobligationsandresponsibilitiesbasedonlaws,regulations,etc.arebornebythe
purchaserandtheuser,andSAITOSEISAKUSHOCO.,LTD.isexemptfromanyresponsibilities.
Voltage:6-8.4V,greaterthan1,500mA※
※IfyouuseaLi-Po,werecommendthespeclessthan2,500mAcapacityand
lessthan30Cdischargerate
ver.Oct,2020
●Beforestartingtheengine,openthemainneedleApprox.2turnsfromfullyclosed.
●Starttheengine(usingastarterisrecommendedforsafety).
●Runforabout30secondsatlowspeedtowarmup.
●Openthrottlegraduallyuptofull.InthemeantimeturnthemainneedleCCW.ContinuetoturnthemainneedleCCWuntiljustbefore
enginestopskeepingthethrottleopenedfully.
●Runinthisveryrichconditionfor1literoffuel.
●Now“initial”break-inisdone.
Throttle
Fullopen
Throttle
Fullopen
CCWtomake
rich
Main
Needle
PlugCap
SwitchCapacity:3A〜
Sensor
(2)Sensorcord
Battery
Voltage:6-8.4V
Capacity:1,500mA〜:
( 1)PlugCord MainUnit
(3)BatteryCord
(4)TachometerCord

90-1
90-1
90-1
88B
131
82-1
-9
89
82-1
-16
82-1
-5
82-1
-2
82-1
-14 82-1
-3 82-1
-4 85
90-1
82-1
-29
31-6
82-1
-7 82-1
-8
82-1
-27
82-1
-27
82-1
-28
82-1
-13
82-1
-15
82-1
-1
82-1
-31
82-1
-17 82-1
-18 82-1
-24 82-1
-19 82-1
-25 82-1 -20 82-1 -24 82-1
-21 82-1
-25 82-1
-22 82-1
-23 82-1
-26
91-1
82-1
77 51 44.6
24.6
M10x1.25
207
167.5
39.5
Standoff
mount
φ220
66
82
4-φ5.5
外形寸法図
Outside dimension
#1
#3
#2
CylinderIDNumber(Viewfromfront)
シリンダ番号(前方向より見て)
175
153-3
153-1
153-2
153-4
153
No. Item Qty No. Item Qty
01 Cylinder 3
06 Piston 3
07 Piston pin 3
08 Piston pin retainer 6
43 Rocker arm pin 6
09 Piston ring 6
Valve (In & Ex)
10 Master rod 1
Valve spring & Keeper & Retainer
11 Linked conrod 2
47-1,-2, 48
Conrod linkpin & E-ring
49 Rocker arm cover 6
12-1L,-2
69 Intake pipe 3
Cylinder screw set
Muffler complete
14-1,-2
78-1,-2,-3,-5,-6
15 Crankcase 1
Carburetor complete 1set
17 Rear cover A (Intake manifold) 1
82-1-1,-1-2,-1-3,-1-4,-1-5,-1-7,-1-8,-1-9,-1-13,
18 Rear cover B 1
-1-14,-1-15,-1-16,-1-17,-1-18,-1-19,-1-20,-1-21,
19 Breather nipple 1
-1-22,-1-23,-1-24,-1-25,-1-26,-1-27,-1-28,-1-29,
20 Front ball bearing 1
-1-31,31-6,85,88B,89,90-1,91-1,131
22 Rear ball bearing 1
Main needle
23 Crankshaft 1
85,90-1
Taper collet & Drive flange
Throttle lever
27-1,-2
88B,90-1
Prop washer & Nut
89 Slow needle 1
28-1,-2
Engine mount set
Crankcase screw set
31-1,-2,-3,-4,-5,-6
110 Anti loosening nut 1
Engine gasket set
120 Spark plug 3
32-1,-2,-3,-4,-8
33 Cam gear housing 3
131 Throttle valve extension adapter / set screw 1
35 Cam gear 3
152 Screw-pin 1
175 Initial lube nipple 1
36 Cam gear shaft 3
Electronic ignition system
37 Steel washer set 3set
153-1,-2,-3,-4
38 Tappet 6
Pump assembly
39 Pushrod 6
82-1-17,-1-18,-1-19,-1-20,-1-21,-1-22,-1-23,
Pushrod cover & Rubber seal
-1-24,-1-25,-1-26
40-1,-2,-3
47
46
6ea.
12 1set
78 1set
82-1 1set
14 3set
85 1
88B 1
27 1ea.
28 1ea.
31 1set
32 1set
95
40 6ea. 153 1set
160 1set
46-1,-2 3ea.
48 Cotter (Valve retainer) 6
95-1,-2,-3,-4 1
82-1-9,-1-14,-1-18,-1-20,-1-22,-1-31
Carburetor gasket set
91
Muffler right angle adopter / nut140 3
Carburetor screw & spring set
90 82-1-7,-1-8,-1-13,-1-16,-1-17,-1-26,-1-28, 1set
1set
90-1,31-6
41 Rocker arm 6
Rocker arm screw & Nut
42-1,-2
42 6ea.
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
Allspecificationsandmodelsaresubjecttochangewithoutnotice.
Warranty:
●Ifthereisanydeficiencyfromthefactoryconcerningmanufacture,pleaseconsultwiththeshopordistributoryouboughtfrom.Our
companywillberesponsibleforrepair.However,anyfailureortroublecausedbyunnecessarydisassembly,modification,orotheruses
thanthoseprovidedintheinstructionmanualisnotsubjecttowarranty.
●Ignitionsystemissubjecttothewarrantyonlyforinitialfailure.Oncethesystemhasbeenactivatedsuccessfully,itwillnolongerbesubject
towarranty.