Hi guys my brother has a 04 predator 500 he bought off a friend. It ran great for the first 2 yrs. He flipped it and after that it didn’t want to start so we took it to the shop pulled the plug out it was the incorrect plug and had no gap and also was black. So we got a new plug put in it, it started up rough and hand a lot less power so he sent it home with me. I got it home I put and inline spark tester on it and it had spark once every ten cranks. So I checked wired found that the throttle contacts needed adjusted then i took the plug out and it was black again so cleaned it and also the carb. Put it all back together started up perfect but went to drive it and it was gutless it would not pop the front wheels off the ground so took it on the road it goes through all gears but starts cutting out at the end of every gear so go back to the house look at the air filter it’s filthy. So I take it out and order on mean while I tried riding it with no air filter same response. So I go ahead and put an ignition switch back in for him from another bike then I fix some bare wires. After that I figured I would take it for 1 more ride before I put it up so it started right up went to pip a wheelie and it stood straight up had power again. So I drove it probably another 100 feet then it dies like it ran out of fuel so I check the gas it’s full check if it was on and it was tried starting it again and finally get it then I go to drive it again and if I take off real slow I can move it a little was before it dies but if I try popping a wheelie it dies immediately. Get it back to the shop put it up. Next day put the air filter in smells like gas in he air box so I pull the plug it’s black so I out a new one it it and start it up still runs the same then I park it pull the air box tube of and a little fuel drips out of carb. Anyone have any ideas I think it’s getting way to much fuel.