Join Date: Dec 2008
Location: Sycamore, IL
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The tank was just about empty and I filled it up with fresh 93 octane - no change so far. I have let it warm up at idle and it still does it. I haven't ridden it more than just around my yard so I don't know about higher speed accel. When I hammer the throttle from idle it falls on it's face and backfires. Seems to idle just fine (1500 rpm's) and if I slowly take the rpm's up to 3k or so and hit it, it seems to respond fine. I was thinking the same thing that there should be enough fuel in the carb bowls to supply fuel to the engine immediately off idle, thats why i'm not sure it could be the fuel pump or filter, but I'm not too knowledgeable about 2 cycle engines either. I would rebuild the fuel pump just to eliminate it but no Polaris dealers around me have a rebuild kit for it. Do you think I should take it out and drive it for a while, or will this potentially cause engine damage?
Thanks for all your help and suggestions, I really appreciate it!