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millgrove

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  1. Ty 80 Engine Questions/help

    millgrove replied to canada280i's topic in Yamaha
    You're probably no where's near Hamilton, Ontario but I sure wish I had've got the Second TY80 that you sold. I'm into a money pit of one right now. I put in a new ignition, unclogged the carb, unstuck the reeds, etc... and it still won't fire. I took the head off and there seems to be a lot of play in the piston. I can move it around back and forth in the cylinder. AND there seems to be a wavy kind of wear/scoring of the cylinder in the front on either side of the exhaust port. Of which looks like it's either very clogged or is supposed to be very small. Here's my question, I found a NOS GT80 Cylinder. Can I use this as a bolt on replacement for the original TY cylinder? Anyone like to chime in on this one?

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