I’ve got an 05 trx500tm and I can’t seem to figure out what’s causing the mist of gas being shot back through the carb at idle and very low speeds. It’s also backfiring through the exhaust. It idles rough and cuts out after about 30 seconds unless given gas but runs great anywhere after idle. I’ve checked timing and timing chain, made sure intake valve was adjusted correctly, cleaned the carb I can’t think of anything else it would be. Any suggestions would be very helpful!