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Old Nov 9th, 2011, 9:56 am   #1 (permalink)
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Cam timing vs valve adjustment

I have a few questions about cam timing:

If you are getting your valves adjusted, are the cams timed at the same time?

Have any of you got your cams timed & seen some HP gains on a monster? I heard Ducati specs are kinda loose.


What are the benefits of cam timing?


Thanks in advance!
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Old Nov 9th, 2011, 12:02 pm   #2 (permalink)
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The two operations are separate. Valve adjustment is independent. Cam timing is a straightforward but lengthy process, and costs will vary quite a lot depending upon who does it and whether much needs to be done. Ducati build motors on a production line, and as far as I can tell, all production bikes get the same timing. On newer bikes, (Testastretta) they have gone to a tooling approach that takes a major chunk of the tolerance stack-up out of the build process and should result in fairly consistent timing. On the older bikes it was basically whatever the build process tolerances came up with, and relied upon keyways and woodruf keys. To adjust timing on either system requires several measurements to be made, followed by adjustment and re-measurement. Takes time, so costs will depend upon your shop rate.
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