BRP-Rotax
MAINTENANCE MANUAL LINE
FUEL SYSTEM
CARBURETOR SYNCHRONIZATION
Idle speed Checking the synchronization at idle speed
For smooth idling, synchronization of the throttle valves is necessary. When synchroniz-
ing, slacken both bowden cables (throttle lever lies close on the adjustment screw).
Instruction To synchronize when idling the following steps are necessary.
Step
Procedure
1 Detach the resonator hose of the compensating tube to separate the two air
intake systems. In this condition, a slight difference in the engine running
should be noticeable.
NOTE
First carry out the mechanical synchronization and then the pneumatic synchroni-
zation (if required).
Figure 7.15: Synchronization at idle speed
1 Resonator hose 2
Compensating tube
Effectivity: 912 Series
Rev. 0
12–20–00
Page 25
January 01 2020
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