98 400 cam chain noise?


3 replies to this topic
  • jimaw2

Posted March 11, 2007 - 04:10 PM

#1

I have a 98 400f with what sounds like cam chain noise that kinda comes and goes. Engine runs fine. I had a problem with a couple of other bikes in the past with tensioner problems. Is that an area of concern on these engines?

  • 642MX

Posted March 11, 2007 - 05:19 PM

#2

I have a 98 400f with what sounds like cam chain noise that kinda comes and goes. Engine runs fine. I had a problem with a couple of other bikes in the past with tensioner problems. Is that an area of concern on these engines?


I've never seen a bad tensioner, but I've seen a lot of worn cam chains.

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  • yamaha racing 230

Posted March 11, 2007 - 05:34 PM

#3

my 99 YZ400F Has a loud cam chain u hear it over the jardine rt4 exhuast i had the bike checked out and its fine.

  • dkwok

Posted March 12, 2007 - 05:36 PM

#4

sorrie, like to sidetrack abit,
i was told we cannot jus change the cam bearings, we have to change the camshaft all togather, is tis true,
thanks,:applause:





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