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Dirt Bike Brands - Other
XR 400 valve adjustment
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[QUOTE="Jon K., post: 141835, member: 22460"] I can't help it. . . .I am a glutton for punishment. Neither feeler gauges nor TDC is required. Most rocker-type engines set on .002 intake and .003 exhaust. If you grab the rocker with your fingers and move it up and down, you can just feel .002, but you can't hear it ticking. If you can't feel it moving it's too tight. You can just hear .003. . . it ticks a little upon movement. If it goes clank clank clank. . .it's too loose. After doing about a million of these, I have a feel for it. Actually for a novice this may be more accurate that trying to read a feeler gauge for the first time. But then a novice might be better advised to watch a pro a couple of times to get a feel for it for himself. TDC? TDC? We don't need no steenkin' TDC! Rotate the engine in the normal direction of rotation until the ex valve just starts to open. Set the intake. Continue rotation in the normal direction; the exhaust opens, the exhaust closes, the intake opens, the intake closes. Just as the intake closes. . .set the exhaust. OK guys. . . . fire away!!!!:eek: Oh yeah, do this on a cold engine. It is much easier on the fingers! [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
XR 400 valve adjustment
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