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I have an 04 800 rev with a 159 that seems to be using way too much fuel. Out of gas at 41 miles. Riding was pretty easy not much powder just kind of an easy day. Seems like I should get more than that. Tank seemed full but it wasn't empty when I filled up so can't be sure. (possible air bubble). Motor is rebuilt a few rides ago, sled sat for all of last winter cleaned carbs seems to be running ok. Might have been a little rich but didn't foul any plugs. Thinking the dpm might need replaced/cleaned. Any suggestions are appreciated. Thanks Bill