I did some work this winter on the 650r so I could prevent a problem that seems to be reoccurring.
My last track day I about dropped a valve again. I blame this to downshifting into a gear that it was not ready for and over reving the bike in the process. (operator error) I decided to try and alleviate this problem by using Kibblewhites Heavy Duty valve springs and installing a slipper clutch.
Another problem I was having was with missed shifts. I decided to install the hybrid shift arm that follows the shifting cam and replacing the spring with a heavy duty unit as well, all from Factory Pro. If this doesn’t help with the missed shifts my next step will be to microfinish the gears and shafts.
Riding motorcycles and wrenching since my preteen years, I have moved from motocross to street bikes. Being a teen back in those days it was tough to get me off of the bike. Now days even though I am very busy being a dad I still have my weekends and go to the track to race and on occasion will do a track day or two.
The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.