Here are the specs for your belt P/N 0627-010 Length 47 3/4 ± 3/16 inch Width 1 3/8 inch
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DRIVE BELT DEFLECTION
Drive belt length, condition, and deflection are all
important for peak performance. To check and adjust
drive belt deflection, use the following procedure.
1. Turn the engine off; then open the belt guard.
2. Make sure the drive belt is sitting at the top of the
driven pulley sheaves.
3. Place a straightedge on top of the drive belt. The
straightedge should reach from the drive clutch to
the top of the driven pulley.
4. Using a stiff ruler centered between the drive clutch
and driven pulley, push down on the drive belt just
enough to remove all slack. Note the amount of
deflection on the ruler at the bottom of the
straightedge. The deflection should be within the
range of 25-31 mm (1-1 1/4 in.).
NOTE: Push down on the belt with the ruler only
until the bottom of the belt flexes upward; then read
the amount of deflection.
5. To correct drive belt deflection, washers can be
removed or added between the stationary and
movable sheaves of the driven pulley.
NOTE: If the drive belt deflection is above
specifications, the snowmobile will bog and lack
power at clutch engagement. For good
performance, proper belt deflection is critical.
6. Secure the belt guard.