Shindaiwa GP3410 Owner's Manual

8

Adjusting Engine Idle

Idle Speed Adjustment

Place the unit on the ground and start 

the engine, and then set throttle control 

lever to idle postion. Allow engine to 

idle -3 minutes until warm.
If a tachometer is available, the engine idle 

speed should be adjusted to 3,000 (±300) 

RPM (min

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IMPORTANT

A clean and unrestricted airflow is essen-

tial to your pump’s engine performance 

and durability! Before attempting any car-

buretor adjustments, inspect and clean the 

engine air filter as described in the Main-

tenance section of this manual.

NOTE

Carburetor fuel mixture adjustments are 
preset at factory and cannot be serviced 

in the field.

Starting the Engine (continued)

Starting a flooded engine

Follow the starting procedures for a 

warm engine.
If the engine still fails to start or fire, 

refer to the troubleshooting chart at the 

end of this manual.

5.

6.

 CAUTION!
Incorrect spark plug installation can 
result in serious engine damage!

Disconnect the spark plug lead, and 

then use the spark plug wrench to 

unscrew the spark plug (counter- clock-

wise to remove.)  See Figure 9 
If the spark plug is fouled or is soaked 

with fuel, clean or replace the plug as 

necessary. For spark plug specificia-

tions and gapping procedure, see the 

Maintenance section.
While the spark plug is removed, crank 

the engine several times to clear excess 

fuel from the combustion chamber.
Replace the spark plug and tighten it firmly 

with the spark plug wrench. If a torque 

wrench is available, torque the spark plug 

to 48-65 inch-lbs. (70-90 kg/cm).

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3.

4.