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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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Old 01-24-2011, 02:49 PM
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noobi noobi is offline
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Default Is 202psi normal?

Did a compression test on my 07 200, its done about 100 hours in total, and 80 on the top end (dont ask about that)
I was wondering if +200 psi is ok? Iv done the test about 8 times now, and every time its the same, and im using a good guage, which measures dads KTM as ~168psi and my 125 as ~178psi. Im not doing a wet compression test, where oil is put down the plug hole.
It just seems like a ridiculously high compression?

Thanks


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Old 01-24-2011, 02:58 PM
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Thats good.Just be sure to use good quality high octane fuel.
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Old 01-24-2011, 05:12 PM
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My '08 ec 250 measures at 191psi. I'd say it's probably right.
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Old 01-26-2011, 03:34 PM
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What base gaskets did you use on the rebuild? A reduction in thickness here will raise compression....
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Old 01-28-2011, 03:01 AM
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Barry, still running 2 base gaskets, the thin brown one and the green? one.
Starts easy, every time, runs well, was just curious really.
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