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SAITO FA-56B/56BGK

4-Stroke Single Engine Operating instructions

We would like to express our sincere thanks for 

your purchase of the SAITO FA-56B/56BGK 

engine, which is manufactured by SAITO 

SEISAKUSHO CO., LTD. Please read our instruc-

tions carefully and treat your engine with care. 

Should there be a manufacturing defect, SAITO 

SEISAKUSHO CO., LTD. will make necessary 

repairs at free of charge. You will notice a letter 

(A,A,C etc.) stamped on the top of the right mount-

ing lug. This identifies the production version of 

your engine. If you ever need to order a part or 

have a question about your engine, specify this 

letter along with the part number you need so we 

can better handle your request. 

Unique features of SAITO FA-56B/56BGK engines include:

Cylinder  

 

-By the monolithic structure of cylinder head and cylinder with direct hard 

chrome plated inner surface without using cylinder liner, this engine empha-

sizes durability while it also offers lightweight and distortion-free structure 

with improved cooling efficiency.

●Piston  

 

-High silicon content aluminum is used in the piston construction. It also has 

a compression ring that increases the engine’s efficiency.

Crankshaft   

-Made of solid chrome molybdenum steel, and supported by two ball bearings.

●Combustion chamber -Increased combustion efficiency with improved hemispherical shape.

●Exhaust sound 

-Real-plane-like exciting exhaust sound.

●Weight 

 

-Lightest level in the class.

●Mounting dimensions -As mounting dimensions is the same with those of FA-50.

This engine is designed and manufactured based on high efficiency and durability of the first AAC 

method in the world.  AAC: Aluminum Piston, Aluminum Cylinder, Hardchrome Plated.

SAITO FA-56B/56BGK engines have been designed placting emphasis on the lightweight and 

compact.

Specifications

Bore

Ø24.8mm

Body: 414g  (Approx. 458g w/muffer)

 

Stroke

 

19.

0

mm

9.18cc

Disp.

Weight
Practical speed

Approx. 

2,000-12,000rpm

11”x7” - 11”x9”

12”x5” - 12”x7”

13”x5” - 13”x6”

Max on Gnd

 

Approx. 9,000-11,000rpm

4-stroke 50 or 2-stroke 30~40 class

Propeller

Static thrust

APC11”x7”: 1.4kgf

APC12”x6”: 1.7kgf

APC13”x6”: 2.0kgf

Applications

Fuel

Fuel consumption

Standard 

accessories

Spanner for tappet adjusting lock nut

 

  

1pc

Limit gauge (0.1t) for tappet adjustment 

1pc

Hexagonal wrench set 

 

 

1set

Screwdriver(-) for idling needle adjustment 

1each

Main needle valve extension bar 

1 each

Muffler set    

1set

SAIGP-01 Glow plug (Attached to the engine)  1pc

Synthetic oil with 10~20% nitro methane content

Approx. 

20

cc/min (At full throttle 

10,200rpm)   *Fuel flow varies depends upon prop load. More fuel flow 

with larger load and less fuel flow with smaller load.

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