Help with exhaust valves.
  • tyyoung
    Posts:10
    Joined:Sun Oct 23, 2011 5:06 am
    Help with exhaust valves.

    by tyyoung » Mon Oct 31, 2011 6:42 pm

    Just did my first valve check on my 450R at 20 hrs. The intakes were .005 and .006. The weird thing is that the left exhaust was .014 and the right was .011. I can only find info on valves that are tight so what would cause this problem?
  • tyyoung
    Posts:10
    Joined:Sun Oct 23, 2011 5:06 am

    by tyyoung » Mon Oct 31, 2011 6:48 pm

    Do I need to worry about it being high and how do I fix it??
  • staffy24
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    Joined:Wed Dec 29, 2010 3:29 am

    by staffy24 » Tue Nov 01, 2011 1:35 am

    don't worry. but yes you should re shim your valves this is why they say to check them from new after first few rides as they bed in when new and then settle down after that
    over 40 still ridin hard
    still learning
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    crfsonly
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    Re: Help with exhaust valves.

    by crfsonly » Tue Nov 01, 2011 9:30 am

    tyyoung wrote:Just did my first valve check on my 450R at 20 hrs. The intakes were .005 and .006. The weird thing is that the left exhaust was .014 and the right was .011. I can only find info on valves that are tight so what would cause this problem?


    the intakes are within spec as is the right exhaust. you should shim the left exhaust and in all likelihood it will stay in spec after a shim.

    ken
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  • staffy24
    Posts:742
    Joined:Wed Dec 29, 2010 3:29 am

    by staffy24 » Tue Nov 01, 2011 3:16 pm

    correct but while you are there no harm in getting them all spot on
    over 40 still ridin hard
    still learning
  • tyyoung
    Posts:10
    Joined:Sun Oct 23, 2011 5:06 am

    by tyyoung » Tue Nov 01, 2011 6:18 pm

    thanks guys for the help.
  • tyyoung
    Posts:10
    Joined:Sun Oct 23, 2011 5:06 am

    by tyyoung » Tue Nov 01, 2011 6:21 pm

    I talked to a local shop guy and i think that maybe I was forcing the feeler gauges too hard. He said its a feel thing, dont force it but should be able to feel a little resistance to the feeler gauge. I remeasured and i think everything will be ok.

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