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Electronic fuel injection 101

197K views 65 replies 38 participants last post by  Eric14570 
I have a 2009 Sportsman 500 EFI touring model. I have run into an issue in that the machine sputters at low speeds, 10-20 Kms per hour. Hit the throttle and it will usually take off. Had fuel filter replaced and also throttle body assembly. I have spent $700.00 so far and the same problem is occurring. Any help would be appreciated.
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