I'm having some idling problems with my 2008 Polaris Trailblazer 330 I hav a new carburator and fuel pump on it and when I start it with the air box on it revs partly wide open but seems to boog out when I go to throttle it I'm thinking rev limiter but not for sure idle screw doesn't seem to lower it much without cutting it off anyone run into yet

 

Welcome to the forum.. Is this a rebuilt carb(carb kit) or a replacement knock off oem Chinese carb? Either way did you check jetting to see if the main jet is the same? Might be what's happening. Another thing that could cause problems is that it has an ecm module that can cause so many problems in itself. Recheck the carb if you have to,make sure the air box is sealed tight and that you have no more than 1/8" slack at the thumb throttle. Also this model retains a rpm limiter module.You can always snip the black wire or disconnect it and see if it helps. Item #3 is the limiter module,11 is the ecm.
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