Ti Intake Valve ?

5 replies to this topic
  • nikdaqik_231

Posted October 22, 2010 - 02:39 PM


Just did my first valve adjustment on my o7 450. The center intake valve was tight, the rest ok. My ? is about the Ti valve itself.

My last bike was a Crf450, when I had a tight valve it wasn't worth adj..The hardened coating on the valve was gone and if adj would only last one ride. I have had soooo much better valve train life with the YZ. So, will the valve I adjusted last or is it time for new valves?

Only getting 70 hrs on the Crf450 Ti intake valves, glad those days are over!

  • Steel Panther

Posted October 22, 2010 - 03:32 PM


its a yamaha, dont worry about it :excuseme:

  • grayracer513

Posted October 22, 2010 - 04:13 PM


You'll know when you check it again in 4-5 more hours. If it's still where you set it, it's OK. If it's already moved tighter, not.

How tight was it?

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  • nikdaqik_231

Posted October 22, 2010 - 05:09 PM


Zero clearance!

  • grayracer513

Posted October 23, 2010 - 07:42 AM


That doesn't sound good. Usually any time the valve moves more than 0.5mm, it spells trouble.

  • nikdaqik_231

Posted October 23, 2010 - 11:25 AM


Hopefully ride tomorrow, should be a good test for my questionable valve (???).

Older & YZer, Love that!!!

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