I got a 08 rzr all stock except the 26 tires well when you slam the gas down it pops and boggs down, if you keep patting the gas it will eventually get up to speed, but kinda falls on its face right of the bat. it is snorkled, the only thing i could think would either be the air fliter clogged or spark plugs fouling out. it does it in high or low gear. it seems as if their might be water in the gas or somthing?