69
OPERATING INSTRUCTIONS
Principle of Operation
Propulsion
Depressing throttle lever increases engine RPM causing the drive
pulley to engage. For most models engine RPM must be between
2500 and 4200 before drive pulley engagement will occur.
Outer sheave of drive pulley moves toward inner sheave, forcing
drive belt to move upward on the drive pulley and simultaneously
forcing the sheaves apart on the driven pulley.
The driven pulley senses the load on the track and limits the belt
movement. The result is a continuous change in the ratio of the two
pulleys which maximizes acceleration and forward movement of the
vehicle.
Power is transferred to the track through the chaincase and drive axle.
Turning
Handlebar controls the direction of travel of the vehicle. As the han-
dlebar is rotated to right or left, the skis are turned in the direction of
intended travel.
WARNING
Proceed with pre-operation check list before riding.
WARNING
Do not operate engine with hood open or belt guard removed.
WARNING
Always use a mechanical snowmobile stand to properly sup-
port vehicle during any track verification. Slowly accelerate en-
gine in order to rotate track at very low speed when it is not on
ground.
WARNING
Fast reverse could result in loss of stability.
Mmo2002-003a.book Page 69 Friday, February 2, 2001 1:47 PM
