1992 Honda 300 Fourtrax 2x4 starts to bog when engine is hot

My Honda atv starts up and runs fine until it gets hot. After it gets hot the engine starts to bog and it doesn't want to start. It also backfires when it decelerates. What do you guys think is causing it. I also wasn't riding it very hard but when I wanted to accelerate it would just bog. Thanks for reading and if you have an answer to this please respond your answer will be greatly appreciated.