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Yamaha MX & Off-Road Dirt Bikes
yz85 problem and piston questions????
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[QUOTE="TCYFudge, post: 1280026, member: 77802"] I probably only have around 25 hours max on the piston. im thinking of downsizing because it looked like a multi point seizure on the intake side and exhaust side. when it was first seizing its was only the exhaust side but when i just checked, there seemed like there were more scuff marks on the intake side. i cleaned the aluminum off the cylinder already with muriatic acid. I'm leaning towards the 48.5mm piston kit because the 49.5mm piston really looks too big for the cylinder and all the scuff marks around it makes it seem like it is definitely way too big. I make sure i warm up my bike enough though. i think i should have my cylinder checked for bore too though. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
yz85 problem and piston questions????
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