I tried to start my 360 today but no luck. Here what happened. At first it did start up but quickly died. Tried again , it started but died again.
Tried starting fluid , nothing. Took off air cleaner, , sprayed starting fluid, once again nothing. I ran the battery down trying to start. I removed the plug and cleaned it and checked for spark. when I looked in the orfice were the air cleaner goes, i noticed an abnormal amount of fuel. I cleaned it out with a paper towel and there was a good amount of fuel. During the times I tried to start it the choke was in several different from off to on.I gave it NO gas but there seemed (like I said) to be gas in the area of the air cleaner. It seems it was flooded each time what could cause that? Just gave up and I am frustrated...any suggestions?

 

I bet the valves on your quad have NEVER been checked/adjusted. Try that first.

 

I have that same problem. Only it happened the day we got it. So we went back to the dealer they didnt want to help us out. They gave us a new spark plug and said try that. No luck. We went back again, they wanted 300$ just to look at it. So I call the place where I got my Yamaha, they said they would tune both of our quads for a total of 150$. So like stated above, get it tuned first...