Hi A friend of mine has an STM clutch in a 2015 R1 which isn't releasing properly. He bought the bike 2nd hand and came like this with no manuals etc. Does anyone have any technical information regarding suggested stack heights, settings etc or a technical manual? Thanks
Sigma and Yoyodyne seem very similar IIRC. At one time Yoyo guides were online, but are hard to find. I did dig up: http://www.slipperclutchs.com/pics/...MAHA R1 09-14 18403 Mounting instructions.pdf http://www.sigmaperformance.com/slipperclutch-racesetup.html This matches what I know with my 400's Yoyo, shoot for 1mm of clutch preload, measured as pressure plate lift off the hub by the stack compared to an install with no stack.