User manual FA-200R3 RADIAL

ManualsBrandsSaito ManualsHobbyEngine FA-200R3 RADIAL

-1-

Instructions for SAITO FA-200R3

(

AAC

)

4-Stroke En

ine

We would like to express our sincere thanks for your purchase of the SAITO FA-200R3

engine. Please read our instructions carefully and treat your engine with care. If there’re

any manufacturing defects, SAITO Seisakusho co., ltd. will make necessary repairs free

of charge. You are requested to strictly avoid disassembling the engine since assembled

with the use of special tools and jigs to assure perfect construction.

In the case of breakage or trouble, if encountered due to crash or others, please send the

engine to our service station.

Please notice that our guarantee will not cover any breakage or trouble on the engine

caused by your disassembling or modification.

Bore 27.0mm×3 Weight Approx. 1,385g (with mufflers) Propeller Standard APC16"×8"-10",17"×6"

Stroke 19.2mm×3 Practical Speed 1,800-9,500rpm max range on the ground: 8,500-9,500rpm

Stroke volume 32.98cc Static thrust Approx. 6-7kgf

Fuel flow

46cc/min (At full throttle, Fuel of synthetic oil with 15% of nitro content, at approx 9,000rpm)

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

Unique features of SAITO FA-200R3

 Optimum for small-size scaled airplane

 Low vibration (assured by constant-interval explosion)

 Real sound of the exhaust.

 The engine is designed to equalize fuel mixture and minimize misfire due to insufficient distributing at idling by means of special port type intake manifold

originally developed by SAITO.

 Cylinder head: Improved semi-spherical combustion chamber assures better combustion efficiency and volumetric efficiency.

 Cylinder: The aluminum cylinder is directly hard-chrome plated on its inner surface without installing liners to reduce weight and increase durability. The monolithic

structure of cylinder head and cylinder prevents distortion and improves cooling efficiency.

 Piston: The piston is made of high silicon content aluminum and attached with a compression ring to heighten engine performance.･

 Crankshaft: Has a forged solid construction made of chrome molybdenum steel, and supported by two ball bearings.

 Cam: Features high cam providing longer maximum lift time.

 Carburetor: High-performance of slow throttling type.

 Propeller nut: designed to have double nuts preventing loosening and fall-off for the safety.

Standard Accessories

1. Wrench for tappet adjusting screw 1 pc. 5. Glow plug [SA

-GP01] 3 pcs.

2. Limit gauge (0.1t) for tappet adjusting 1 pc. (Attached to the engine)

3. Hexagonal wrench (1.5mm) 1 pc. 6. Plug heating connector set 1 set

4. Muffler complete 1 set (3pcs. of red cord, 1pc. of black, 2pcs. of fixture)

Mechanism of 4

Stroke En

The 4-Stroke engine provides 4 individual pisto

movements as illustrated below. The “Stroke” means th

iston movement from the Top Dead Center to the Botto

Dead Center. In the 4-Stroke engine, one cycle of operatio

in change of gas state inside the cylinder and valv

movement are completed at every 4 strokes of piston that i

every 2 revolutions of the crankshaft. Formally the engine i

called the 4-stroke one-cycle engine.

Explosion order

(1-3-2)

Prop rotational directio

Cylin

er numbers viewe

from the rea

Principal outside dimension

Summary of content (5 pages)

PAGE 1
Instructions for SAITO FA-200R3 (AAC) 4-Stroke Engine We would like to express our sincere thanks for your purchase of the SAITO FA-200R3 engine. Please read our instructions carefully and treat your engine with care. If there’re any manufacturing defects, SAITO Seisakusho co., ltd. will make necessary repairs free of charge. You are requested to strictly avoid disassembling the engine since assembled with the use of special tools and jigs to assure perfect construction.
PAGE 2
PAGE 3
(B) Manual starting method (For safety, wear gloves and use a safety stick) 1. - 2. Same procedure as (A) describes. 3. Prime the engine. Open the throttle valve fully by using the throttle stick. Insert a proper length of silicone tube into the priming nipple. Use an injector to fill a proper amount (1-2cc) of fuel into the carburetor. 4. Manually crank the engine 2 to3 turns to supply fuel in cylinders. Then use the throttle stick to fully close the throttle valve. 5.
PAGE 4
I. Normal Operation and Maintenance (a) Do not operate your engine too lean at full throttle since the engine might be overheated. Tappet adjustment Adjust the main needle slightly open than the peak. (Too lean operation causes knocking, stoppage or negative influence on the connecting rods and cam gear.) (b) After completing ground break-in or operating the engine for one hour, adjust tappet gaps (valve clearances) by following procedure to compensate initial wearing, while the engine is cold. 1.
PAGE 5