notchy wr450 shifting
Posted February 08, 2012 - 01:57 PM
I have a 2006 WR450. I bent the shift lever hitting a rock while riding. I straightened it trailside by shifting it down into first then bent it back by using a kind of a cheater bar and bending it down to sort of back where it should be. Since doing that it is now pretth difficult to find neutral, and shift from first to second. Did I bend anything in the transmission? If so, what should I expect to find inside if I get into it? What typically bends and gets out of alignment inside the gearbox if this happens and causes it to be difficult to shift from 1 to 2, and find neutral? It used to be real smooth...
Thanks for any helpful advice
Posted February 08, 2012 - 05:40 PM
Posted February 08, 2012 - 09:21 PM
Posted February 09, 2012 - 04:46 AM
Posted February 09, 2012 - 05:43 AM
Like Maniac says, check the shaft as well. It takes a big hit to damage something inside the motor, but it can happen.
Posted February 10, 2012 - 02:39 PM
Posted February 16, 2012 - 07:01 PM
I'll try to post some pictures later after I get the side case off.
I've beaten the crap out of this bike since new (Jan 06) and other than valve adjustments, fork seals, rear linkage bearings and lots of oil changes I've never had to work on it. Basically wear items only, and I'm pretty sure the only reason this failed was abuse. Love this bike.
Posted February 16, 2012 - 07:42 PM
Posted February 17, 2012 - 08:55 AM
You can see the crack in the outer race, which let all the balls into the sump and caused the failure.
BTW, the 2007 one does not fit, even though it is a suggested replacement.
Also, this is a very common problem on pre-07 WRs and YZs. It can be removed without taking off the side case, just the clutch cover, clutch and oil pump gear.
Getting the new one back on may be a different story, though. It's tight in there.
Edited by beernutt, February 17, 2012 - 09:01 AM.