Starting A Flooded Engine; Stopping The Engine; Carburetor Adjustments; Idle Speed Adjustment - Shindaiwa 446s Owner's/Operator's Manual

Starting a Flooded Engine

If the carburetor choke is closed (choke
control fully extended) and after re-
peated attempts, the engine fails to start,
the engine may be flooded with fuel.
The following steps are recommended
to clear a flooded engine.
1. Move the "ON-OFF" ignition control
switch to the "OFF" position.
WARNING!
The ignition switch must
be in the "OFF" position to
prevent the chance of igniting fuel
and/or fuel vapors escaping from the
engine during this procedure.
2. Push the choke control completely in
to open the choke.
3. Remove the spark plug access cover
and disconnect the plug wire. Re-
move the spark plug.
4. Inspect the spark plug for damage or
excessive wear and replace if neces-
sary. If the spark plug electrode is
fuel soaked, or coated with carbon
deposits, clean and set the plug gap.
Refer to page 14 of this manual in the
Maintenance section for spark plug
information.

Stopping the Engine

Carburetor Adjustments

WARNING!
The saw chain must never
rotate at engine idle speed.

Idle Speed Adjustment:

Use a screwdriver to slowly turn the
idle speed adjusting screw clockwise or
counter-clockwise until the engine idles
at 2,800 min .
-1
10
WARNING!
Keep clear of the spark
plug opening! Any excess
fuel in the engine will be ejected
through the spark plug opening dur-
ing starter operation.
5. With the spark plug removed, the
choke control pushed in and the
ignition control in the "OFF" position,
clear any excess fuel in the engine
by repeatedly pulling the starter until
no evidence of fuel is seen escaping
from the spark plug opening.
6. Replace the spark plug and install the
spark plug lead and access cover.
7. Refer to the Engine Start and Stop
section and follow the instructions for
starting a warm engine.
8. If the engine still fails to start, refer to
the Troubleshooting section.
1. Move the "ON-OFF" ignition control
switch to the off position. If the saw
has just been used, allow the engine
to idle for 1 to 2 minutes to stabilize
engine operating temperature before
stopping the engine.
Idle Adjust
(Clockwise to Increase)
Remove the
Spark Plug
Pull the engine over
CAUTION!
n Never run the engine at full
throttle with no-load. This may
cause engine seizure.
n Never operate this saw above
-1
13,500 min . This may cause
engine seizure.
NOTE:
Low speed mixture and high speed
mixture for the 446s saw are factory set
and can not be adjusted in the field.