BRP Lynx Commander 800R E-TEC 2018 Operator's Manual page 89

MAINTENANCE PROCEDURES
condition may vary this critical engine
RPM thus affecting snowmobile effi-
ciency.
This adjustable drive pulley allows set-
ting maximum engine RPM to maintain
maximum power.
Calibration screws should be adjusted
so that actual maximum engine RPM
matches the maximum horsepower
RPM.
MAXIMUM HORSEPOWER RPM
7900 RPM (± 100)
NOTE: Use precision digital tachome-
ter for engine RPM adjustment.
NOTE: The adjustment has an effect
on high RPM only.
Calibration screw has a notch on top of
its head.
A33D19A
TYPICAL
1. Notch
There are 6 positions numbered 1 to 6.
Each position modifies maximum en-
gine RPM by approximately 200 RPM.
Lower position numbers decrease en-
gine RPM in steps of 200 RPM and
higher position numbers increase it in
steps of 200 RPM.
Example:
Calibration screw is set at position
4 and is changed to position 6. So
maximum engine RPM is increased
by 400 RPM.
______________
86
1
Procedure
Loosen the lock nut just enough to pull
the calibration screw head out and ad-
just to the desired position. Do not
completely remove the lock nut. .
NOTICE
Do not completely re-
move the calibration screw oth-
erwise internal washers will fall
off. Always adjust all 3 calibration
screws and make sure they are all
set to the same position.
A16D0HA
TYPICAL
1. Loosen just enough to permit rotating of
calibrate screw
Tighten the lock nuts to the specified
torque.
TIGHTENING TORQUE
Adjustment
lock nut
WARNING
NEVER disassemble or modify the
drive pulley.
Improper assembly or modifica-
tions could cause the pulley to ex-
plode violently under the stress
generated by the high rotational
speed.
See your Lynx dealer to maintain
or service the drive pulley. Im-
proper servicing or maintenance
may affect performance and re-
duce belt life. Always respect
maintenance schedules.
1
10 N•m ± 2 N•m
(89 lbf•in ± 18 lbf•in)