Valve adjustment gave me more power.
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Thread: Valve adjustment gave me more power.

  1. #1
    Senior Member tripleted's Avatar
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    Valve adjustment gave me more power.

    I adjusted the tappets using the timing mark at TDC. Rode the bike and wanted to get the top end tapping noise to go away so after reading some of the posts, I adjusted them again after taking the cam cover off and using the timing mark on the cam at TDC. I test rode the bike and noticed the bike has a noticeable power increase. The tapping noise is still there but I am now believing this is just the way the engine sounds normally. I am living with the noise. I do recommend that you take the extra 2 minutes and take the cam cover off and use the timing mark on the cam gear at TDC to set your tappets.
    admiral and Fred like this.

  2. #2
    Senior Member indika666's Avatar
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    What is the difference? Unless you get bottom dead center by taking the wrong stroke as compression stroke, no difference i presume ?
    I use a pencil in the spark plug hole to determine the compression stroke. Much easier..! ;-)

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    Adam-n-nevada likes this.
    2006 TW200E (JDM) -> 100% stock, Shinko SR428 front, Bridgestone TW204 rear, 14/45 stock gearing

  3. #3
    Senior Member jb882's Avatar
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    I do the same with regard to removing the cam cover. It takes me a total of 30 seconds to remove and reinstall and there is no guesswork. Line up the timing mark on the cam sprocket and go?

    Triplet end was your intake valve tight? A buddy of mine noticed a bump in power when he did his valves once and the intake side before the adjustment it was quite tight.


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  5. #4
    Senior Member frog13's Avatar
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    So just remove the cam cover and line those marks up and skip the lower case method ?.

  6. #5
    Senior Member tripleted's Avatar
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    Yes, line up the marks at TDC. I BELIEVE THIS IS THE MOST ACCURATE METHOD TO SET THE TAPPETS.

  7. #6
    Senior Member elime's Avatar
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    Quote Originally Posted by tripleted View Post
    The tapping noise is still there but I am now believing this is just the way the engine sounds normally. I am living with the noise. ​
    My engine had a tappet noise that wouldn't go away no matter how many times I adjusted the valves. Finally I removed the adjusting screw and could see the end of the valve was worn.

    I have posted this picture a couple of times before but it is a lot easier to see what is wrong than me trying to explain it -- the end of the valve is worn and an accurate adjustment using a feeler gauge is very difficult, if not impossible. In this case one might be able to get it quiet by using a feeler gauge to get it as close as possible and then make the adjusting screw just a teeny tiny bit tighter -- but make sure there is still up and down clearance.

    P3040830.JPG

    How the end of the valve is supposed to look. Tony

    P3040832.JPG
    Last edited by elime; 05-07-2014 at 09:42 PM.
    Fred likes this.
    Long live the internal combustion engine!

  8. #7
    Junior Member Paladin's Avatar
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    I always set my valves at the loose end of the adjustment range, but not so loose that you hear them tapping. This also gives a little fudge room in case you don't adjust tappets during scheduled maintenance intervals. The clearance decreases as the valve train wears. It also seems to increase the torque characteristics especially at lower RPM's.

  9. #8
    Senior Member greenbomb's Avatar
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    what is the clearance in inches 2007 model

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