Ski-Doo Scandic Tundra Series, Operator'S Manual

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MAINTENANCE PROCEDURES
If the vehicle creeps, lower the drive
belt height from the preliminary set-
ting. Repeat procedure until creeping
stops.
Reverse Activation
NOTE: The reverse may not activate
or may be harder to activate if the belt
is positioned too high in the driven pul-
ley. If reverse activation does not work
properly, ensure the drive belt is prop-
erly adjusted. Adjust the drive belt
lower in the driven pulley if needed.
Drive Pulley
Drive Pulley Adjustment
WARNING
Remove the tether cord cap and
key before performing any adjust-
ment. Vehicle must be parked in a
safe place, away from the trail.
The drive pulley is factory calibrated to
transmit maximum engine power at a
predefined RPM. Factors such as am-
bient temperature, altitude or surface
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.
ENGINE
MAXIMUM
HORSEPOWER RPM
550F 6800 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.
1
A33D19A
TYPICAL
1. Notch
There are 6 positions numbered 1 to 6.
Each position modifies maximum en-
gine RPM by about 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 ma-
ximum engine RPM is increased by
400 RPM.
Procedure
Just loosen locking nut enough to pull
calibration screw partially out and ad-
just to desired position. Do not com-
pletely remove the locking nut. Torque
locking
nuts to 10 N•m ± 2 N•m
(89 lbf• in ± 18 lbf• in ).
NOTICE
Do not completely re-
move calibration screw otherwise
internal washers will fall off. Al-
ways adjust all 3 calibration screws
and make sure they are all set to the
same position.
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