I have a 99 Polaris sportsman 500 that is backfiring through the carburetor. It will start fine and idle perfect, but as soon as I touch the throttle it’ll pop and backfire like crazy at the carb. I can let go of the throttle and it’ll settle back to idling.

I herd that a worn cam or a torn intake boot might be my problem. It seemed like it did this all at once without any warning. Any help will be greatly appreciated.

Thanks, Rob