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Suzuki MX & Off-Road Dirt Bikes
RM250 Top End Failure Pics
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[QUOTE="customfab, post: 1405080, member: 62781"] Long story short. Had Eric Gorr do a all-around tune for woods riding. Received new piston kit (265cc bore). Installed everything & put back together. Bike immediately had a strange ticking noise that I can only describe as "valve noise". Anyway, sat the bike last 8 months. Finally pulled the top end. Found a cracked and scored piston. All damage adjacent to the reed valve. Cylinder is scored and divoted in adjacent areas. Pretty good trauma. What the hell happened? I'm afraid to get the repairs only to have the same issue. Pics attached. Like to diagnose it. BTW, not trashing Eric. I ran the bike for about 30 min total. PITA to start but once running....awesome power. I can only imagine the gain with a proper piston. Yes, dumb of me to run for even 30 minutes. I've rebuilt several engines in my life....never screwed up any chevy strokers so I'm clueless here. :bang: [IMG]http://customfab4x4.com/Pictures/RM250/01%20RM250%20Scored%20&%20Cracked%20Piston%20(Medium).jpg[/IMG] [/QUOTE]
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Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
RM250 Top End Failure Pics
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