The design of the clutch engage/disengagement is in effect a rack and pinion system with teeth that engage, where the "rack" is the throwout rod coming out horizontally from the clutch, and the "pinion" is the vertical operating shaft held by 2 needle bearings in the clutch housing cover. I did not have any need to replace the clutch plates or other parts in the PUMA, I was only interested in the new clutch cover, so the rest of this will only describe the clutch housing cover itself. In my case I was repairing a failure of my Rekluse clutch internals (possibly caused by a worn clutch housing cover) and decided to go ahead and replace the clutch housing cover at the same time. Later, another post about this PUMA also talked about a new design clutch housing (clutch side cover). The parts replaced by the PUMA measure included many related items, even clutch disks. The problem was that the clutch would not fully disengage and in fact in some cases teeth were destroyed on the rack (throwout rod) or pinion (operating shaft). Initially a post on the BMW G650X Issue Log on AdvRider talked about a PUMA Measure US-22898888-02 that BMW issued on the 2007 Rotax made engine. Note: This talks about the '07 BMW XCountry which of course is the same motor as the XChallenge (which was only made in '07).
'07 BMW G650 XCountry Repair: Replace '07 clutch side cover with improved '09 design: Sections: G650 XCountry - Upgrade clutch side cover Back
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