Low compression, pics of my piston

peonpete · 09-08-2015, 03:44 AM

Here are pics of the cylinder.

kz1000st · 09-08-2015, 07:57 AM

The piston is scoured, the cylinder might clean up with a light hone. The carbon on top of the piston is a non-issue. No oil, screeching rpm killed the engine. What caused the high rpm was probably a loose manifold, open vacuum line or air getting in someplace. No oil finished the job.

Pistons, rings and a new barrel are cheap. Fix the oil leak and find out what caused the rpm to go berserk.

09-08-2015, 07:57 AM	#2
kz1000st Join Date: Oct 2008 Location: Hyde Park, NY Posts: 1,228	The piston is scoured, the cylinder might clean up with a light hone. The carbon on top of the piston is a non-issue. No oil, screeching rpm killed the engine. What caused the high rpm was probably a loose manifold, open vacuum line or air getting in someplace. No oil finished the job. Pistons, rings and a new barrel are cheap. Fix the oil leak and find out what caused the rpm to go berserk. __________________ 2021 Dong Fang Super 200- 1,161 miles 1991 Honda Nighthawk 250- 17,443 miles 2009 CF Moto Fashion- 18,608 miles 1983 Kawasaki 750 Spectre- 47,113 miles twowheeler.yolasite.com/ That's 30,049 China Scootin miles and Counting.
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