I purchased 2021600 touring to plow with. At low speed 4 -8miles an hour it spits and spuders.  Had it back to dealer 4 times. They have changed plugs twice. And shifts hard compared to my Polaris I traded in. It has 12 hours on it most of them trying to make it run better. I just want my money back.  Not sure the dealer believes there's anything wrong. Very frustrated.

[2015 Z Force 800 53/Trail EPS]

Sounds like a conversation you need to have with your dealer. Others have also had problems with the 2021 600. They also have not been able to get then straightened out with their dealer. I'd tell them either fix,replace or give my money back. I would also contact CFMUSA and file a complaint on the machine and the dealer.

I wonder if its the injection control module? Did they still continue with BOSCH on the 2021 models?