Idle Speed Adjustment - Rotax 912 Series Maintenance Manual

4.2)

Idle speed adjustment

See fig. 9/1 and 9/2
General note:
Always adjust idling on engine at operating temperature of the engine.
- The basic idle speed is set by the throttle lever stop screw (1). Refer to section
mechanical synchronization.
Optimizing of running behaviour:
Necessary only if not taken care of at synchronization.
Close idle mixture control screw (2) by turning clockwise and open again 1,5
turns counter clockwise.
NOTE:
CAUTION: If satisfactory engine idling can not be achieved, inspection of
1
X
fig. 9/1
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL
Turning idle mixture control screw in clockwise direction results
in a leaner mixture and turning anti-clockwise in a richer mixture.
the idle jet or additional pneumatic synchronisation will be
necessary.
02725
02726
fig. 9/1
2
12-00-00
Rev. 1, Jan. 01/2002
page 24