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Old 02-24-2013, 05:18 AM   #95
planemanx15 OP
Beastly Adventurer
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Joined: Dec 2009
Location: Long Island, NY
Oddometer: 1,009
Originally Posted by Mr. Canoehead View Post
Is the damage on the piston on both faces or only one? I can't tell from your photos. Assuming it is on both faces:

Thank you for the information. I think my problem was the rings were too tight, and didn't allow oil to pass, causing the issue. Running it hard on the highway created more heat, and ultimately chewed themselves up, and the metal chewed up the cylinder and piston.

Procycle is really a great company and Jeff is an outstanding guy. He offered me a new piston and he will look at my cylinder to check if it can be honed out and used again. When I get it back, this time I'll check the ring end gaps…

Later I will take more pictures of the damage, the rings, and how tight they actually are in the cylinder. I feel pretty friggin stupid, but thank you all for the support and advice with this issue. Hopefully the rest of this project goes smoothly.
2000 Suzuki DR650-790 - 790cc Big bore build thread
1985 Yamaha CA50 - The little scooter that Could
2009 Piaggio BV-250 - Escusi, Babba be bo-bee
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