Just connected with the CPS site via the vendors listing on the left panel. I have to hand it to them - they have a very well organized website. Then I found you could drill down through the Rotax option on their menu and eventually get to their collection of well written technical articles - many of which directly address the issues we discuss on this list. If you have a Rotax - great place to go for reference and parts. I have purchased several items from CPS through their catalog and have always been happy with their service.

Their tech & manual section are a great place to start for information about Rotax-ology.