TECH TIP: SKI-DOO RPM FLUCTUATION (PULLEYS) UPDATE
Date: January 24, 2007 Subject: RPM FLUCTUATION (PULLEYS) No. 2007-4
REVISION 1, September 21, 2007 <=
2007 Summit 800R All
PROBLEM
..In some riding conditions a few vehicles may experience RPM top end fluctuation and poor back shifting. Our investigation has shown that:
A. A small quantity of driven pulley cams may have been produced with an outer diameter larger than the specification. This condition could lead to a sliding sheave altered
movement; leading to increased heat in both
pulleys.
B. A small quantity of drive pulley sliders may be out of specification causing bin ding.
SOLUTION
A. Driven pulley: replace cam.
B. Drive pulley:
– If the governor cup does not move freely into the sliding half, replace slider(s).
– replace existing spring (160-260) by stiffer one (160-290). The stiffer spring is less sensitive to friction variations due to temperature changes in drive pulley ...
NOTE: The goal is to have pulley components that
move freely one into the other.
PARTS NEEDED FOR REPAIR
Part Description Part Number Qty
Cam 44° 417 127 090
Cam 44°–40° 417 127 092
Cam 44°–36° 417 127 0941
NOTE: Choose the cam that is the most suited
for your application.
Part Description Part Number Qty..
Slider (sold in pack of 6) 417 223 021 6
O-ring (sold in pack of 6) 732 401 030 6
Spring 160-290 415 034 900 1
PROCEDURE
For complete procedure refer to the 2007 shop manual.
NOTE: make sure that all the parts are moving freely.
Printed in Canada. (mbg2007-005 DL) 1 / 2
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®™ and the BRP logo are trademarks of Bombardier Recreational Products Inc. or its affiliates.
WARRANTY
Normal warranty applies.
