Top End Help 88Yz80

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6/5/2018 7:05 PM

Hey I'm doing a top end on my 88 yz80, the cylinder walls are in good condition and still have a cross hatch pattern on them, but I have low compression and just replaced the ring (one ring piston). The piston has blowby and the ring was installed properly, this just means time for a new piston and ring right? No replating or boring necessary?

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1988 Yamaha Yz80

2005 Suzuki Lt80

2007 Honda 400ex

Totaled 05 Blaster

6/6/2018 4:56 AM

Unless you have the bore size checked, you will just be guessing.

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