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WR 650 compression

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Discussion Starter • #1 •
what is stock compression for a 88 wr 650?

I did a compression test and am surprised at the numbers... 180psi on 1 and 188psi on 2. These were measured with the engine cold.
Also can I run 91 octane in this engine? Thats the best we get here in Cali...
 
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randyb12
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