Is it possible that being a tooth too far forward or back could cause richness in the engine?
Did a cam swap last year and the bike started and ran ok so I didn't think much of it. Opened it up on the freeway the other day and it burbles and has power trouble from 4500-7000 rpm. After that it comes back to life and pulls strong to redline.
Took it to a dyno and they said I was SUPER rich (IIRC somewhere around 18, if that sounds right)
Not contending what you said tovar, since you're probably right , but can you explain that? I would think that max hp would be less (or more), if the cam timing were off, not close to stock, with early cam timing helping high RPM at the expense of low, and vice-versa for late timing.
Cam timing is not optimal for all rpm's so if off it can show at some rpm range. Seen it do this in mid range by been off 1 tooth (20 degree). Not saying it is but possible.
If I can find it, I'll post it but in case not here's the cliffs notes...
Good power delivery from 1500-4500, running rich, around 10:1.
4500-7000 looks like a ripple, power coming and going suddenly. A/F as low as 8:1.
7000 onward strong power, still running rich.
That doesn't sound like cam timing. My guess is that bad cam timing would change the torque curve, but that the changes would not be abrupt. Do you remember if the curves were repeatable on different runs. That might give another clue.
Best though, just recheck the timing like tovar said, then no guessing.
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