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high compression or big bore.....?

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Old Mar 23, 2005 | 12:58 PM
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Default high compression or big bore.....?
Originally posted by: MSGT
If you go much past 11:1 compression, you are looking at Octane problems (just to be aware).
Stock 11.9:1 recommends 91 octane Premium pump gas on the yfz. If you go higher compression, change your timing, etc then you may want to look at higher octane fuels, but premium works fine up until that point.
 
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