can't shift from 1st to 2nd gear


8 replies to this topic
  • saca

Posted June 23, 2008 - 06:39 PM

#1

Hi! I can't shift from 1st to 2nd gear , but if I put it on the stand shifts fine.
N to 2nd and up is good but if I shift down to 1st and up to 2nd it is not working. Any help or advice appreciated. Thanks!My bike is a 06'YZ450F

  • fritzelman

Posted June 23, 2008 - 07:47 PM

#2

With it running or shut off?
Check the oil for metal fragments?

My guess is your clutch is too tight for a simple fix, but I'm thinking it might be something with your shift cam.

  • saca

Posted June 23, 2008 - 08:03 PM

#3

The clutch is like new , the oil was nice and clean, When I test it on the stand it was running.

  • grayracer513

Posted June 23, 2008 - 08:26 PM

#4

Check the condition of the "stopper lever", item 21 on page 4-70 of the manual. The '06 uses a ball bearing on the end of the lever instead of teh more conventional roller, and some have fallen apart, causing a variety of problems.

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  • matt4x4

Posted June 24, 2008 - 06:46 AM

#5

this thing:
Posted Image

  • saca

Posted June 24, 2008 - 03:48 PM

#6

Thanks!

  • saca

Posted June 26, 2008 - 06:13 PM

#7

Hi! I did Check the stopper lever but it looks good. Any other advice?????

  • grayracer513

Posted June 26, 2008 - 08:24 PM

#8

Well, as long as it's open, try shifting it and look for problems with the operation of the linkage. Remember to turn the main shaft to align the gears as you shift.

  • matt4x4

Posted June 27, 2008 - 03:50 AM

#9

It may "look good", but did you remove it and see if it "works good"?
Could be a bent shift fork...





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