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Everything Dirt Bike
Make / Model Specific
Honda
Honda Xr350r Timing
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<blockquote data-quote="ossagp" data-source="post: 206883" data-attributes="member: 1650"><p>If you grind the stellite valves or recut them, you simply destroy the coating which was there with a purpose. The exhaust valves in one of the hottest running heads anyone has turned loose (the 350's even had the distinction of being the hottest running of the xr's, which do to that extra rocker arrangement for the radial valve angles on it was already way up there as far as hot heads went) "burn" really fast when you do that. Of course it is hard to weigh which will make them burn quicker, the off center mismatched seats you have or the removal of the stellite.</p><p></p><p>I dont know what you paid for your valves, but getting the guides knurled and the seats cut, and as was pointed out by the Ford guy, reshimming is very likely necessary, I can get that done for less than 4 new valves cost. Like Mi was saying, that chain needs tossing.</p></blockquote><p></p>
[QUOTE="ossagp, post: 206883, member: 1650"] If you grind the stellite valves or recut them, you simply destroy the coating which was there with a purpose. The exhaust valves in one of the hottest running heads anyone has turned loose (the 350's even had the distinction of being the hottest running of the xr's, which do to that extra rocker arrangement for the radial valve angles on it was already way up there as far as hot heads went) "burn" really fast when you do that. Of course it is hard to weigh which will make them burn quicker, the off center mismatched seats you have or the removal of the stellite. I dont know what you paid for your valves, but getting the guides knurled and the seats cut, and as was pointed out by the Ford guy, reshimming is very likely necessary, I can get that done for less than 4 new valves cost. Like Mi was saying, that chain needs tossing. [/QUOTE]
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Everything Dirt Bike
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Honda
Honda Xr350r Timing
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