does it smell gassy at all. Any fuel coming out the exhaust while setting. Sounds like you may be flooding it out. Shut off the fuel for a few days and then try and start. Do not flip choke, and try and start with the gas off. You may have to pull the case drain plugs that are located below the exhaust ports to drain. If it is full of gas that is your problem. The 500 the XLT had more issues with the needles and seats sticking and filling the case up with fuel. This in turn washes your compression away and it will be difficult to start. I have seen it dozens of times myself.