Click - Mxz & Rev HPV secondary clutch illustration
Secondary Clutch Bushing Measurements
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When you have the Roller secondary apart, please brake clean it, get the rollers to move freely and if you have the time to remove the rollers from the axles and check for abnormal wear on the axles “shiny spots that don’t look symmetrical compared to each other”
Have a look at the roller surface for cracks and see if the rollers have been rubbing against the clutch wall casing. That 07 secondary has been a dose for some people the rollers have failed and or they crack but keep on running however cause disaster
backshift. Must keep that secondary clean every 3 or 4 rides.
History: LPV 27 and HPV 27 - 1998~2002 vs. 2003~Present day
The LPV 27 and HPV 27 secondary clutches are referred to as the Rotax Electronic Reverse, nicknamed (RER). This nickname is a result of the clutch design which utilizes both a forward and reverse helix angle being introduced on sleds equipped with the RER system. These secondary clutches both LPV @ HPV are used on sleds that don't have the RER system and also landed on certain particular models back as far as 1998.
The 1998~2002 had a drive belt width of 1-3/8 inches. The 2003~Present day models are 1-1/2 inches.
To get a 2003~newer LPV / HPV to work on an older model (1998~2002)to replace the original formula secondary clutch, all one has to do is open the #27 secondary up and remove 1 of 2 shims that are inside of it. With the one shim left installed, the 2003~newer secondary will now be set for the 2002~older model sled using 1-3/8 belt width.
NOTE:The 2002~older model must have the spline secondary jackshaft, cannot have keyway jackshaft
Secondary Clutch Sliding Sheave Bushing measurement - these measurements are for the button and roller secondary. You can also check with a caliper in 3 places.
