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17 TUNING THE ENGINE
122
–
Run the engine until warm.
The cold start button is deactivated – The cold start but-
ton is in its basic position. (
Danger
Danger of poisoning Exhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
–
Always make sure there is sufficient ventilation
when running the engine.
–
Use effective exhaust extraction when starting or
running the engine in an enclosed space.
–
Check idle speed.
Guideline
Idle speed
Tachometer (45129075000)
–
Turn the ignition key in the ignition lock to the position
F01219-10
while the engine is idling.
Note
Engine damage Unfiltered intake air has a negative effect on
the service life of the engine.
Dust and dirt will enter the engine without an air filter.
–
Never start to use the vehicle without an air filter.
–
Remove the air filter housing.
–
Adjust the idle speed by turning idle speed adjusting
1
screw
.
Info
1/4 turn of the idle speed adjusting screw corresponds
to approx. 50 rpm.
Adjust the idle speed in small steps.
Turning counterclockwise lowers the idle speed.
Turning clockwise raises the idle speed.
–
Install the air filter housing.
Danger
Danger of poisoning Exhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
–
Always make sure there is sufficient ventilation
when running the engine.
–
Use effective exhaust extraction when starting or
running the engine in an enclosed space.
–
Start the engine and check the idle speed.
Guideline
Idle speed
Tachometer (45129075000)
p. 18)
1,750 ... 1,850 rpm
(
p. 68)
(
p. 68)
1,750 ... 1,850 rpm
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