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What is the gas milage for (a 500 polaris indy SP ) on groomed trail. and what is the most power range like what rpm i thought it was around 7800 but i clould be wrong. I jetted it down one size and it still seems hard on gas. And what is the top speed i got 98mph with my clutches pretty well gone every roller and bushing what should the top speed be with a good clutch.
 

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Which 500 Indy do you have?

The 488 cc Fuji or the newer USA built 500 cc ???

I had a 1990 Indy 500 and top speed was in the 90's. I'm not positive what peak power is at, but it's close to 8000 rpm making roughly 75 hp on the older 488 cc engine. It usually says peak RPM on the underside of your hood in writing. As for gas mileage, i averaged 12 mpg driving aggressively on groomed trails.
 

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i had a fuel injected 500 that had trouble getting 12.5 mpg canadian which is really not that bad. put some picks on your track and you will find what your true speed is!
 
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