I know what you are going to say the one-way bearing. I just replaced that. I just jetted my carbs and it seems like the one slide is sticking. I hoped cleaning it would be all good. When I try to start it, it smells like it is dumping fuel out the tail pipe. My buddy says its to cold outside. I rode it one time since jetted and it ran fine. Is it possible the slide is sticking??? Do you think I need some carbs?? What should I do?