1999 or 2000: pump gas or laughing gas? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-11-2003, 11:27 PM
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1999 or 2000: pump gas or laughing gas?

Just wondering if any of you knew the difference between the 1999 xcr 400 and the 2000 xc sp 440 other than the chassis (gen II to edge). I read that the 2000xcsp400 has two different timing curves (one for 92 octane and one for 110 octane). I also read that polaris addded 10% hp to that motor in 2000. Is there anything i should be aware of?
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