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<blockquote data-quote="AndrewWatt123" data-source="post: 231493" data-attributes="member: 5982"><p>My 2003 Yz 250 2 stroke, i just did the top end, it blew up, rebuilt again this time new cylinder head piston rings, power valve cleaned and rebuilt.&nbsp; 1 kick and the bike would start. My son Rode it and said it was acting funny but rode ok? when i went out to check it out it wouldnt start. i kicked the shit out of the damn thing for 2 days. Cleaned the plug , made shur there was spark, cleaned the air filter. AND NOTHING!! It Seems like its not getting fuel ? So i opend the top checked the Cylinder, its fine. opend the power valve cover And it had kicked the 2 screws that hold the guides on the ends , Plus the center screw was off , all three screws were in the housing, along with the little piece in the middle, but it seemed ok. also the valves that move in and out , the one with the over spill hose was litterally pushed out of the hole. were i believe its machined together using a press ? i d k? just seems like it was,. by the way its made, any way my question are the valves getting pushed out to far?&nbsp; would the bike not start because the valve body wasnt operating properly? would riding it like that fry the rings? any advise would be awsome. thanks</p></blockquote><p></p>

[QUOTE="AndrewWatt123, post: 231493, member: 5982"] My 2003 Yz 250 2 stroke, i just did the top end, it blew up, rebuilt again this time new cylinder head piston rings, power valve cleaned and rebuilt. 1 kick and the bike would start. My son Rode it and said it was acting funny but rode ok? when i went out to check it out it wouldnt start. i kicked the shit out of the damn thing for 2 days. Cleaned the plug , made shur there was spark, cleaned the air filter. AND NOTHING!! It Seems like its not getting fuel ? So i opend the top checked the Cylinder, its fine. opend the power valve cover And it had kicked the 2 screws that hold the guides on the ends , Plus the center screw was off , all three screws were in the housing, along with the little piece in the middle, but it seemed ok. also the valves that move in and out , the one with the over spill hose was litterally pushed out of the hole. were i believe its machined together using a press ? i d k? just seems like it was,. by the way its made, any way my question are the valves getting pushed out to far? would the bike not start because the valve body wasnt operating properly? would riding it like that fry the rings? any advise would be awsome. thanks [/QUOTE]

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