Quote:
Originally Posted by roostafish
I thought these bikes were 14:1.
Anyway, to get a consistent reading, put a couple drops of oil down the sparking plug hole.
The 300 I had before consistently read 180-185psi. My 200 before that read similarly.
Ron @ RB Designs did the squish band mod on my 250. He requested that I perform a compression test before sending him the head. He was not surprised by the reading.
Bottom line, if you get consistent readings you're probably fine, as long as it runs fine.
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I am not sure what a GG is, but I looked up a Honda CR250 2t and it was at 8.5:1. I never understood these high compressions.
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2006 EC300, 2000 XR650R, 2003 EC250, 2001 EC200 (OK, the last two are really my sons).
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