2001 YZ426 - 3rd gear problem - what´s wrong????

10 replies to this topic
  • jespertheil

Posted May 29, 2004 - 06:40 AM


After a jump today my bike suddently starts to slip in 3rd gear. I felt right away, but what is wrong?
All the other gears works great, but if i put it in 3rd it pops in and out of gear. I´m thinking maybe have landed on the gearpedal and ended up bending a shift fork, is that it?

  • Hamish

Posted May 29, 2004 - 04:37 PM


more than likely you have rounded out of broken a dog on the gear. A bent fork will normally show itself in other gears aswell. My Wr did a similar thing, but it was jumping out of fifth. The culpret was a bent fork and (which was probably caused by) a dog missing off 3rd gear (which engages fifth). Either way, it's time to split the cases for further investigation.

  • indiandunes

Posted May 30, 2004 - 04:48 AM


Welcome to the blown 3rd gear club!


Posted May 30, 2004 - 12:41 PM


Here's my experience


It's not too difficult of a job, just follow the manual!

  • tool

Posted May 30, 2004 - 03:46 PM


"It's not too difficult of a job, just follow the manual!"

and for god's sake use a torque wrench, on every bolt, and retorque the 3 screws on the CB gear. stupid screws. :thumbsup:

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  • Tassie_Stephen

Posted May 30, 2004 - 07:34 PM


My YZ did the same thing but in fifth. Check the shift fork and fifth gear. The shift fork should have sharp edges on it, not rounded at all. Apparently its a common problem with the YZ. I asked Yamaha Australia about it and they said they knew nothing of it, but when I recieved my new 3rd,5th, and shift fork the new gears were 'beefed up'.

  • jespertheil

Posted June 03, 2004 - 01:00 AM


Just did the case splitting and my problem was exactly the same!
3rd, 5th and a new shiftfork..
300 USD $$ and i´m back in business..

  • jespertheil

Posted June 03, 2004 - 10:43 AM




Posted June 03, 2004 - 07:29 PM


Yep, that's what mine looked like.
I better start using the clutch more often.

  • jespertheil

Posted June 03, 2004 - 11:44 PM


Is that why??
I must admit that i have done a lot of shifting without clutch... :thumbsup:


Posted June 06, 2004 - 07:00 PM


That's what I've been told.
Most of the time I'm just trying to hold on so I just back off the throttle for half a second and shift!

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