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Posted

Ok so I tested my compression again after not doing so for about 5 months. Last time it was 118 on the rift and 116 on the left now its 112 on the right and 111 on the left. Now I want to do something but what would be the best option. Its a 65.25 bore and the cylinder walls look fine but I noticed that the piston has a bit of movement but nothing exceptional. Should I be alright with a rering? Or should I go overbore again. Not sure how long on this rebuild.

 

 

 

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Posted

65.50 sorry

 

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Posted

65.50 sorry

 

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You can go 66.5

That cylinder still has life.

A re-ring is almost NEVER OK.

Bore it true again. Light hone and new pistons.

Posted

x2 on the tester to be sure unless its of high quality such as a snap on. If the cylinders are that far gone I agree with boring and starting fresh again. If you are not already running one, a good quality mix ( i run klotz supertechniplate) is always a good thing and a big part of the life of any two stroke.

Posted

Does 5 or 6 psi drop sound normal for probably 200 miles of riding?

 

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Posted

Ive ran amsoil interceptor since I got it except the first bottle of castrol 927 that came with it.

 

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Posted

400 miles sorry

 

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Posted

Does 5 or 6 psi drop sound normal for probably 200 miles of riding?

 

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If theres a problem with the bike it could drop....thats why I said try another tester to be sure...and hold throttle wide open for test

Posted

If that tester is not threaded in all the way, you will have lower results.

 

My last tester showed that I was at 90 psi on my cub until I tried another one and it read 148.

 

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Posted

Thanks I'll try ajother

 

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