i need cam help quick

3 replies to this topic
  • ridinredneck

Posted May 25, 2007 - 09:36 PM


when i tighten down the cam bolts on my 99 wr400f to proper specs, the exhaust cam is fine, spins free, but the intake cam is kinda tight, turns but with a little force. is this normal? or is something wrong?

  • Birdy426

Posted May 26, 2007 - 10:54 AM


Should spin freely. First, make sure you're not pushing against the valve springs. If you're not and it's still hard to turn, pull it apart and check for burrs, dirt, etc. Put it back together and retorque the bolts...make sure you do it in a cross pattern...

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  • jbrooks26

Posted May 26, 2007 - 02:04 PM


Also ensure that you have the circlip in the cam cap slot. This aligns the cam correctly with the other gears. Also if the cam is not lined up properly it will drag a little. Hope this helps.


  • ridinredneck

Posted May 28, 2007 - 12:58 AM


Thanks guys, big help. got er done now and runs great.


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