I have a 2008 brute force 650 that has trouble backing up. I was pushing snow today and had to back up, went to reverse and it started to bog down and back fire. The wheeler moved, but only after i pushed the throttle in a little and backed out slowly. Full on reverse bogs out and backfires. I think it might be a pilot jet problem, but the thing runs great going forward. Any thoughts? I am snowed in and all the stores are closed for a day or two so I have nothing better to do. Thanks in advance 
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