Re: CRF450 Valves



Hi!

>I put an hour meter on my bike ('03 BTW) when I got it. I rode it for
>two seasons before my valves tightened up significantly to the point
>of replacing them [...]
>The hourmeter read right at 80 hours at that time. [...]
>The biggest determining factor I've found is the rpm range the rider
>normally rides at. I bought a 450 so I don't have to rev it to get
>good power-

So you're actually telling me that it can be worse than having to do a
top end job with replacing to intake valves after only 80 hours? On my
YZ426F I would have been through four sets in that case - fortunately
the valves still hold up well, didn't even have to re-shim them.

OK, titanium vs. steel, I know. And you may call me a lame sissy for not
revving my scoot enough.

Volker
__
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