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Discussion Starter #1
I have a 1993 Artic Cat with electronic fuel injector. When I start it the RPM's are supposed to go to 3000 then drop to 2500 after it warms up a bit. It does not do that anymore it just goes up and up till the clutch grabs and the snowmobile jerks forward then it drops and does it again. Is something wrong? Also last year the thing could go like 83 mph at 9000 RPM and now it tops out at like 72 MPH at 8100 RPM cant go any higher. Whats is normal compression for this engine it is 550 CC I heard 125 PSI is normal. Thank You.
 
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