So I pick my zforce 800 trail up from the dealer today...get it home and turn it on and let it warm up for 10 minutes...Get in to drive around the subdivision and I hit 16 mph and it stalls out and almost shuts down...wont go past 16mph...Up to that point it does fine, I hit 16 mph and it stalls out!!!! Am I missing anything here or did I get a dud? I am thinking I so should have went with a polaris.