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Old 12-08-2010
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tx71nova's Info
Join Date: Dec 2010
Location: ham lake,mn
Posts: 20
Default octane for 90 jag

im helping my buddy fix his sled up for winter and we did a compression test on it and both cylinders have 145lb compression. we were speechless.

its s a 1990 440 jag afs

is this thing suppose to have that much compression??

when i did the compression test, the exhaust was off and i held the throttle wide open

and what octane should we run in it?

2000 polaris xc sp 500 with 144 track with WPS rail extensions, custom tunnel extension, boost bottle, dial a jets, 4 inch handle bar riser and bar hooks, extra idler wheels and custom mounted led atv tail light and custom gas can holder
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