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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
250F ring time, loss of power, gas in oil, cont...
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[QUOTE="nikki, post: 597697, member: 18126"] CRAP - again... I think the timing was a tooth off but now we have both the punch marks on the cam sprockets and the TDC mark on the case aligned and still have a problem. The intake valves measured .10 and .11mm (in spec) 1 ride ago, yesterday before disassembly, and now after reassembly. I can't get to the middle intake valve with the feeler but assume it's okay. However, something funky is going on with the exhaust valves. Both measured .18mm (in spec) one ride ago and yesterday. Right now - the one closer to the clutch lever side still measures .18mm BUT the one on the brake lever side is showing like no clearance (can't get a .05mm under it at any time in the stroke). Also, we noticed when you take the exhaust rocker arm/cam sprocket off, the cap that goes over the shim on the problemed exhaust valve always sits higher than the other in spec exhaust valve now. Does this sound normal? What could have happened in between yesterday and today to make this one exhaust valve have very little clearance between the cap and the lobe? Damnit this sucks! [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
250F ring time, loss of power, gas in oil, cont...
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