I've got an 04 Z400 and it recently sat for a while (2 months or so) and was rarely ran. Well, I drained the gas out of it and put some new gas in it. It runs funny now.. I was in 5th gear topped out and it started stuttering and spitting. Think this is a carb issue and it needs to be cleaned out?

Does anyone happen to know how to drain the gas tanks on these quads? It looks like the petcock is directly bolted to the tank and I don't wanna go through the hassle of taking the tank off.

Seen that thing the other day.. that thing is wild man.

Man that looks like fun. I hope to do that one day.

No, I havn't done anything to it other than change the oil a few times.

When I first drained it there was water in the tank but after I had changed it, it was straight oil.

I have an 04 z400 and for some odd reason, it will not keep all of the oil in the crank case. For instance, I parked it in my garage and i came back to it 2 weeks later and the drain plug had backed up and drained all of the oil in the oil tank. So, on the next ride, I put 1 quart of oil in the tank and started it up to get the oil flowing and then unscrewed the dipstick and oil/water started pouring out of the tank. So, I then drained all of the water/oil out of the tank and crankcase.. put 3 quarts of oil in and started it back up and it was fine. I went riding that day and half way through the ride, check the dipstick and it started pouring out of the tank again. Any advice would be grateful, Thanks.