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Everything Dirt Bike
Make / Model Specific
Kawasaki
KLX 650R No-start
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<blockquote data-quote="Trfsrfr" data-source="post: 206963" data-attributes="member: 3959"><p>I thought I mentioned it, or used some other phrase earlier, to describe a condition that just didn't seem right to me. I thought I posted pics.</p><p>When I turn it over by hand, the pressure from the valve springs cause the cams to abruptly snap to closed position after over-center and the cam chains seem appear to loosen up and on the intake cam they look like they lift off the cam sprocket a bit. I think one of the pics I posted showed this, but maybe not, it's been a couple months now.</p><p></p><p>So now I am beginning to think that this<strong><em> is</em></strong> the problem with this bike. It would explain the other piston I have sitting in a crate with valve marks in it. Remember, it came with 2-3 boxes of extra parts.</p><p>But the tensioner appears to be new so I am wondering why it would be happening?</p><p>What else could it be?</p><p>Stretched cam chain? Wrong cam chain? Bad tensioner?</p><p></p><p>Before I had it running this past weekend, I made sure that the tensioner was as tight as it would get, and it ran pretty good and made good power. And that is what is confusing me.</p><p>I should probably start a new thread, since it is no longer a no-start situation.</p><p></p><p>I bought a used upper cam chain off eBay and am going to go and measure it tonight. I have suspected this since the beginning but never measured the chain thats in it because I didn't want to tear it down that far. Now that I have another I will measure it and see if it is in spec. </p><p>If it is, I may have to swap it, then measure the one in it.</p></blockquote><p></p>
[QUOTE="Trfsrfr, post: 206963, member: 3959"] I thought I mentioned it, or used some other phrase earlier, to describe a condition that just didn't seem right to me. I thought I posted pics. When I turn it over by hand, the pressure from the valve springs cause the cams to abruptly snap to closed position after over-center and the cam chains seem appear to loosen up and on the intake cam they look like they lift off the cam sprocket a bit. I think one of the pics I posted showed this, but maybe not, it's been a couple months now. So now I am beginning to think that this[B][I] is[/I][/B] the problem with this bike. It would explain the other piston I have sitting in a crate with valve marks in it. Remember, it came with 2-3 boxes of extra parts. But the tensioner appears to be new so I am wondering why it would be happening? What else could it be? Stretched cam chain? Wrong cam chain? Bad tensioner? Before I had it running this past weekend, I made sure that the tensioner was as tight as it would get, and it ran pretty good and made good power. And that is what is confusing me. I should probably start a new thread, since it is no longer a no-start situation. I bought a used upper cam chain off eBay and am going to go and measure it tonight. I have suspected this since the beginning but never measured the chain thats in it because I didn't want to tear it down that far. Now that I have another I will measure it and see if it is in spec. If it is, I may have to swap it, then measure the one in it. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Kawasaki
KLX 650R No-start
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