Saito FG-11 - User Manual

SAITO FG-11
4-Stroke Gasoline Single Engine Operating instructions
FG-11isoneofthesmallestgas-engineamong4-strokegas-engineswhichisdesignedbasedonthelongseller-Glow
engine“FA-62”.Takingsamedevicessuchascarb,sparkplug,ignitionsystemfromexsitingsingle-gasenginessuchlike
“FG-21”“FG-17”“FG-14C”,durability,stability,andreliabilityaregivenaswell.
󱔒27.0mm
Body:465g/Muffler:50g/Ignitionsystem:100g/Enginemount:110gApprox.
19.0mm 10.9cc
Approx.2,000-9,500rpm
12”x8“~13”x8”
Approx.8,500~8,800rpm
APC13x7Approx.1.3~1.7kgf(Dependonprop）
-1-
ThanksforbuyingSAITOFG-114-strokegas-engine
exclusivelyformodelairplanes.
Inordertoavoidmisuse,pleasebesuretoreadwellthis
instructionmanualcarefully.Ifthereshouldbeanydeficiency,
inconvenience,etc.concerningthemanufacture,ourcompany
willrepairthemwithresponsibility.
Anyfailureortroublecausedbyunnecessarydisassembly,
modification,orotherusesthanthoseprovidedintheinstruc-
tionmanualisnotsubjecttothewarranty,however.
Moreover,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.
Notificationabouttreatmentof4-strokemodelgas-engine
◎Sincevalvetimingisdesignedtogethighpowerandhighspeed,theoverlaprangeisrelativelywide.Sosometimesfuelgetflown
backfromthecarburetor.(Itmayspatterintheengineroom.）
◎Sincetheoilforlubricationismixedinthefuel,wasteoilfromthebreathernippleisdirty.Dependingontreatmentofwasteoil,it
canbespatteredontheplane.（Ref.Section9）
◎
Sincelubricationisthroughbreather,sometimestheoiloozesfromeachjointorcommissurehoweveritʼsnoproblemonperformance.
◎Dependingonthequalityoftheoil,sometimestherecanberustinsidethecrankcase.Butitʼsnoproblemonperformanceaslong
astherearenoabnormalnoiseorbacklash.
Specifications
Bore
Stroke Disp.
Weight
Practicalspeed
MaxonGnd
Propeller Staticthrust
Applications
Fuel
Fuelconsumption
Batteryforignitionsystem
Standardaccessories
4-strokeglow50-60class
Regulargasoline：Oil＝20:1(Volumeratio)
Approx.7cc/min(Atfullthrottle8,800rpm)
*Fuelflowvariesdependsuponpropload.Morefuelflowwithlargerloadandlessfuelflowwithsmallerload.
Voltage:6-8.4Vhigherthan1,000mAisrecommended
Enginemountset    1set
Ignitionsystem（w/sensor）   1set
Sparkplug[SAITOSP-1] （Attachedtoengine） 1pc
Mufflerset   1set
Limitgauge(0.1t)fortappetadjustment 1pc
Spannerfortappetadjustinglocknut  1pc
Hexagonalwrenchset   1set
Plugwrench     1pc
1.Propeller
Dependingontheairframe,pleaseadoptthestandardsizeinthe
dataanduseareliableproductwhichisgenerallyonthemarket.
(APC13ｘ7isrecommended)
Pleasemaintainsufficientbalance.Sinceanimbalancedpropis
vibratoryanddangerouswith
loweredperformance,pleasemaintainbalancewithabalancer.
Moreover,acrackedpropisdangerous.Makesuretocheckany
timeandreplaceitwithanewoneifitʼscracked.
*Propandfuelconsumption
Iftheloadislarge(thediameter&pitchofthepropislarge)fortheengine
characteristics,theair-fuelmixtureshouldberich.Thusthemainneedlehastobe
opened.Thatis,eveniftherevolutionislow,thefuelconsumptionishigh.
Conversely,whentheloadissmallandtherevolutionishigh,thefuelconsumption
isloweredbecausethemainneedlecanbeclosed.
Inordertodecreasethefuelconsumptionandprolongtheenginelife,apropeller
shouldbeusedwhoserevolutionismaximizedwhenthethrottle-valveisfully
opened,whileusinganairframewhichenablesallflightswithabout90%ofthe
outputofthepropeller.Inthiscase,thethrottlevalvewillbefurtherthrottled
duringhorizontalflight.Onthecontrary,anairframewhichcanonlydeliver
performanceinfullyopenconditionwillsufferworseningfuelconsumptionandlife.
Outsidedimensions
Fig.1

Saito FG-11 Specifications