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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 bottom end help needed
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[QUOTE="bigc, post: 695990, member: 42938"] You will probely need a fly wheel puller to get the fly wheel off.Do not beat on it with a hammer.The crank will need to be pressed out and pulled back in when you reassemble the engine.You can get a tool to do this or make your own.I got some metric all thread and a steering wheel puller to press it out,I drilled a piece of flat metal or something to fit over the crank put the nut on and kept tightening the nut and using shims to pull it in.I am talking about the fly wheel side being pressed in,you should be able to just lay the engine on the side pull the other side off.This will leave you transmission all intact so you can remove all at once and don't have a zillion pieces to try and figure out where the go.I would definately get some crank bearing and seals and a complete gasket kit.I bought all my stuff from a place called tjparts exspress.It cost me about three hundred to completely do mine.Crank bearing,gaskets.bought a pro-x piston{it was the cheapest).also connecting rod and labor to get it pressed together $70.Hope this helped good luck! [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 bottom end help needed
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