Saito FG-40 Operations Instructions download pdf

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Specifications

SAITO FG-84R3

4-Stroke Gasoline radial Engine Operating instructions

Thanks for buying SAITO FG-84R3 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 manufac-

ture, our company will repair them with responsibility.

Any failure or trouble caused by unnecessary disassem-

bly, modiﬁcation, or other uses than those provided in

the instruction 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, regulations, etc. are borne by the purchaser and

the user, and

SAITO SEISAKUSHO CO., LTD. is exempt from any

responsibilities.

Bore

󰱲36.0mm x 3

Body: 3,057g / Muﬄers: 157g / Ignition system: 250g / Mount spacer: 64g (16gx4)

Stroke

27.6mm x 3 84.28cc

Disp.

Weight

Practical speed

Approx. 1,300-7,000rpm

D24 x P10 standard

Max on GND

Approx. 5,500-6,500rpm

2st Gas-engine 6070cc class

Propeller Static thrust

Approx. 79kgf (Depend on prop）

ApplicationsFuel

Fuel consumption

Battery for ignition system

Standard accessories

Regular gasoline：Oil＝20:1 (Volume ratio)

Approx. 40cc/min (At full throttle 6,200rpm)

*Fuel ﬂow varies depends upon prop load. More fuel ﬂow with larger load and less fuel ﬂow with smaller load.

Voltage: 6-9V higher than 1,000mA is recommended

85.6

70.2

100

221.7

51.5

15.4

Ø250

M10×1.25

Mount

Spacer

Outside dimensions

Fig.1

SAITO FG-84R3 is the gas-version of existing glow FA-450R3 with bore up. This new designed gas-engine is a ﬁgure of integra-

tion of many experiences on our radial engines and gas-engines. Additional designs concentrate on durability and high power

brought it powerful and beautiful radial sound.

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.

◎

Since lubrication is through breather, sometimes the oil oozes from each joint or commissure however its no problem on performance.

◎Depending on the quality of the oil, sometimes there can be rust inside the crankcase. But its no problem on performance as long

as there are no abnormal noise or backlash.

Engine mount set (Mount spacer) 4pcs

Ignition system（w/ sensor） 1set

Spark plug [NGK CM-6] （Attached to engine） 3pcs

Muﬄer set (3 Flexible muﬄers & Bracket) 1set

Carburetor adjustment bar 1pc

Choke bar 1pc

Aluminum prop washer (w/steel washer)1set

Limit gauge (0.1t) for tappet adjustment 1pc

Spanner for tappet adjusting lock nut 1pc

Hexagonal wrench set 1set

Plug wrench 1pc

Anti-loosening nut 1pc

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - SAITO FG-84R3

-1- SpecificationsSAITO FG-84R34-Stroke Gasoline radial Engine Operating instructionsThanks for buying SAITO FG-84R3 4-stroke gas-engineexclusively fo

Page 2 - Prop direction

-2- 1. PropellerStandard spec is Mejzlik D24 x P10 which brings approx. 6200rpm. Depending on the airframe, please adopt the adequate size in the ra

Page 3 - Capacity: 1,000mA

-3- 5. Ignition system*Be careful of possibility of electrical shock as it generates high voltage.*The unit includes a plastic clip to hold the connec

Page 4 - Aluminum pipe

-4- 8. Engine mounting, mufﬂer attachment, and breather waste disposalFG-84R3 can be installed with mount spacers. As the carb comes out from back of

Page 5

-5- 13. Normal operation, maintenance, and additional information(1) Just after start up the engine, perform warm up running in rich condition for abo

Page 6 - SAITO SEISAKUSHO, CO., LTD

-6- (6) Occasionally tighten the prop nut and exhaust nut.(7) Take an extreme care for safety when operating the engine or flying the model airplane n

Page 7 - SAITO FG-84R3 Parts List(1/2)

38 39 14-431-532-8 48 152 44 40-2 36 78-178-3 07 40-1 06 46 09 08 32-214-342-1 43 47-114-247-2 45 14-137-2 32-9 41 42-232-5110 23 31-6 22 32-4 69

Page 8 - SAITO FG-84R3 Parts List(2/2)

121-1-482-1-982-131-482-1-812-395-3 17 18 -2-531-195-195-2 88 -2 10 32-312-295-482-182-1-3-782-182-1-182-1-6 93 11 82-112-132-331-2No. Item Qty48 Va