backfire after rebuild

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ttwarrior78

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Jul 19, 2007
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I just got done rebuilding my motor on my 2000 warrior. I put new gaskets, and adjusted the valves on it. I let it idle for about 15 minutes and went to putt around on it to break it in. It ran awesome when idling but when i rode it, it backfired when I shifted and soon it just died. I started it back up and it wouldnt run without giving it a little throttle and it would keep backfiring badly. ANd also I went from a 145 jet to a 150 and took all of the disks off of my e-series. any ideas? need quick help, going to little sahara on thursday.
 
I'd guess it's something like the fuel screw that maybe needs to be backed out a half turn or more.. could be something to do with electral.
 
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