Ski-Doo MXZ X 600 RS 2021, Operator'S Manual

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MAINTENANCE PROCEDURES
8. Adjust as required.
Drive Pulley
Drive Pulley Adjustment
WARNING
Remove tether cord cap from engine cut-off switch before
performing any adjustment. Vehicle must be parked in a safe
place, away from the trail.
WARNING
NEVER disassemble or modify the drive pulley.
Improper assembly or modifications could cause the pulley
to explode violently under the stress generated by the high
rotational speed.
See your Ski-Doo dealer to maintain or service the drive pulley.
Improper servicing or maintenance may affect performance
and reduce belt life. Always respect maintenance schedules.
The drive pulley is factory calibrated to transmit maximum engine
power at a predefined RPM. Factors such as ambient temperature,
altitude or surface condition may vary this critical engine RPM thus
affecting snowmobile efficiency.
This adjustable drive pulley allows setting maximum engine RPM to
maintain maximum power.
Ramp cams should be adjusted so that actual maximum engine
RPM matches the maximum horsepower RPM. Refer to
SPECIFI-
CATIONS (ENGINE) .
NOTE: Use a precision digital tachometer for engine RPM adjust-
ment.
There are 5 positions in which the ramp cam can be set.
Each position modifies the maximum engine RPM by about 200
RPM.
Lower position numbers decrease engine RPM in steps of 200 RPM
and higher position numbers increase it in steps of 200 RPM.
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