Took the 95 sportster out yesterday for a good 2 hrs. On take off it act like it didnt want to go, so I back off the throttle and it smooths out .Then when I try to go WOT it bogs down and falls off plane. Sometime it will catch and go sometimes this happens. When I get it back to the house and open up the engine compartment the bilge area is I gues fuel of fuel, oil, water mixture. What do you think the culprit is?