BRP ROTAX 912 Series User Manual

BRP-Rotax
MAINTENANCE MANUAL LINE
ATTENTION
Also check for translucent, jelly-like contamination. Inspect for free passage.
OPERATING RANGE CHECK
General note Once the proper idling speed has been established, it is necessary to check the operating
range above the idle speed.
First establish that the engine is developing full take-off performance or take-off rpm when
selected in the cockpit. Then the setting of the operating range (idle to full throttle) can be
checked or adjusted.
Procedure To control the operating range above idling the following steps are necessary.
Step
Procedure
1
Start and warm up engine (See Operators Manual). Select full power and
check that both pressure gauges are registering the same readings. If the
same reading is not made on both gauges.
Step
Procedure
1 Shut down the engine.
2
Check that carburetor actuation effects full travel and that
starting carburetors (choke) are in the full off position.
3
If necessary, fit/modify the carburetor actuation as re-
quired to achieve full power on both carburetors.
2
Once full power has been established on both carburetors, retard the throt-
tle and observe the pressure gauge settings. The pressure gauges should
show the same reading for both carburetors.
NOTE
Discrepancies must be compensated for by adjusting the off idle
adjustment.
Step
Procedure
1
Shut down the engine.
2 Loosening the locknut on the bowden cable and adjusting
the off idle adjustment.
3 Tightening the locknut.
4 Re-testing the engine.
3 Final idle speed adjustment may be required by resetting the idle speed ad-
justment screws.
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January 01 2020
Effectivity: 912 Series
Rev. 0

BRP ROTAX 912 Series Specifications

General

Brand	BRP
Model	ROTAX 912 Series
Category	Engine
Language	English