Saito FA-30S (H), Instruction Manual

10  

C A R B U R E T O R   M A I  N T E N A N CE

Carburetor
Maintenance

Should you experience difficulty with
the carburetor of your engine:

1. Check the position of the idle
needle valve (89) by fully opening the
throttle barrel (87). Look down
through the barrel and check the

space between the idle needle and the

spray bar (84). The spacing should be
approximately 1mm. If not, adjust
accordingly. Refer to Figure 3 below.

Note: Step 1 applies to .50 through
.80 engines only.

>insert Figure 3 illus of carb  opening here<

2. Remove the high-speed needle

(85) and flush out the spray bar with
clean fuel. Replace the high-speed
needle and follow the instructions in
the Carburetor Adjustment section.

3. Always use a high-
quality 4-cycle glow plug. 

The Hangar 9/McCoy MC-4C is
highly recommended.

Tips For Extended

Engine Life 

To add longer life to your Saito
engine, the following
recommendations are made:

1.  Use a high-quality fuel containing
20% lubricants.

2.  Use recommended glow plugs.

3.  Use the proper propeller size and
balance the propeller prior to use.

4.  Use a tachometer for precise

engine adjustments.

5.  Use an “after-run” oil when you’re
finished flying for the day. Hangar 9
After Run fuel is recommended.

6.  For long-term storage, make sure
there is no fuel left in the tank and the
engine. Remove the glow plug(s) and
apply several drops of high-quality

light oil (e.g., a good quality light
machine oil or Marvel Air Tool Oil)

to the top of the engine, into the glow
plug hole, down the pushrod tubes,
and through the crankcase pressure
vent (breather nipple). Rotate the

crankshaft several times. Store the

engine in the box or on the airplane
with the nose down in order to keep
oil in the bearings.

Figure 3

 Saito Single Cyl Manual 9-00  9/11/00  10:06 AM  Page 12