Shindaiwa 502s User Manual

Idle Adjust (Clockwise

to Increase)

Adjusting Engine Idle

Idle Speed Adjustment:

Use a screwdriver to slowly turn the idle

speed adjusting screw clockwise or coun-

ter-clockwise until the engine idles at

2,800 min

-1

CAUTION!

Never run the engine at full throt-

■

tle with no-load. This may cause
engine seizure.

Never operate this saw above

■

13,500 min

-1

. This may cause

engine seizure.

NOTE:

Low speed mixture and high speed mix-
ture for this chainsaw are factory set and

can not be adjusted in the field.

WARNING!
The saw chain must never

rotate at engine idle speed.

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.

Stopping the Engine

With the spark plug removed, the

choke control pushed in and the igni-

tion control in the “OFF” position, clear

any excess fuel in the engine by repeat-

edly pulling the starter until no evi-

dence of fuel is seen escaping from the

spark plug opening.

Starting a Flooded Engine

Pull the engine over

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.

Remove the Spark

Plug

If the carburetor choke is closed (choke

control fully extended) and after repeated

attempts, the engine fails to start, the

engine may be flooded with fuel. The fol-

lowing steps are recommended to clear a

flooded engine.

Move the “ON-OFF” ignition control

switch to the “OFF” position.

Push the choke control completely in

to open the choke.
Remove the spark plug access cover

and disconnect the plug wire. Remove

the spark plug.

WARNING!
Keep clear of the spark

plug opening! Any excess fuel in the
engine will be ejected through the
spark plug opening during starter
operation.

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 depos-

its, clean and set the plug gap. Refer

to the Specifications section for spark

plug information.

Replace the spark plug and install the

spark plug lead and access cover.
Refer to the Engine Start and Stop sec-

tion and follow the instructions for

starting a warm engine.
If the engine still fails to start, refer to

the Troubleshooting section.