Sounds like the needle and seat in the carbs are worn. My MX use to do the same thing. Did he shut the fuel off before putting the Mach to bed? Easy way to do a temporary fixFrozenPolock said:My friend just got a VERY used 97 mach 1 on a trade and the sled has a problem..It was running good and was low on gas so he parked it ,got some gas ,ran it some more ,parked it for the night and today it wont run ? THEN we see it has gas running out the bottom of the sled so we pulled the spark plugs and the right side is full of gas ?????? What should he doo ? Carb cleaning ? Any ideas would help.