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Everything Dirt Bike
General Dirt Bike
yz250f 2007 valve problems.
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<blockquote data-quote="maticvidmar" data-source="post: 182648" data-attributes="member: 2692"><p>Hello and thanks for help advance.</p><p>I bought a used yz250f 2007 and it was hard to start. So I check a valve clearance and they were way to small. Even the marks on camshaft wasn't right. So I buy new timing chain and the marks is now OK. But valves still have no place and they're open all time so bike have no compression. I'll adjust the valves but I hear that's dangerous because valves on this models are getting bigger and they can bi adjust 1-2 times but then they can break.</p><p>I read a couple formus about valves on 2007 and I'll be very grateful if somebody have any experience what happen after setting valves or has anyone got problems with broken valve after that.</p><p></p><p>Thanks for all the answers</p></blockquote><p></p>
[QUOTE="maticvidmar, post: 182648, member: 2692"] Hello and thanks for help advance. I bought a used yz250f 2007 and it was hard to start. So I check a valve clearance and they were way to small. Even the marks on camshaft wasn't right. So I buy new timing chain and the marks is now OK. But valves still have no place and they're open all time so bike have no compression. I'll adjust the valves but I hear that's dangerous because valves on this models are getting bigger and they can bi adjust 1-2 times but then they can break. I read a couple formus about valves on 2007 and I'll be very grateful if somebody have any experience what happen after setting valves or has anyone got problems with broken valve after that. Thanks for all the answers [/QUOTE]
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yz250f 2007 valve problems.
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