I recently bought a 2001 YZ125, very clean. I rode it for a while, but left it for a few months. It used to start first or second kick, but I left it for a few months and now it takes forever to start and doesn't even sound like it wants to start until it seems to suddenly burst to life. Before I left it for the few months, I ran it in the cold and I think the float stuck and the engine was cutting at high revs; I hope I didn't damage it (anyway I only rode it for a few minutes like this). It fouled a plug, so I changed it, and tapped the carb bowl to free the float. When I pulled out the plug, it was very oily. It ran well when I did manage to start it, but then I stopped to take a break and tried to start it and it took forever again. I am running the same premix ratio as the previous owner did, but not same brand- problem? The problem is I don't live where I keep the bike, so I can't start the engine every week or month or so to keep it healthy. Anyone have any suggestions to what is wrong?