Originally Posted by sumx54 
It is most certainly the steam. If you drill about thirty half inch holes in both side panels over top of the engine this will cure the problem. Three of us have had this problem on our 660 Grizzlys. It used to P!ZZ me off to no end. Before drilling the holes, just pull off your side panels and test the theory by splashing through the water and seeing if it sputters. Sorry I have no Pic's of the holes we drilled but I can get you some maybe later. Good Luck.
Thanks, but I'm not quite sure where you would drill these holes? You don't mean the outter plastic do you, as that would take away from the look of the machine wouldn't it?
Does anyone have a theory as to why the steam seems to make it into the air inlet, as I don't hear this happening with other quads? I've got an older Honda Fourtrax that has never had an issue like this..or any other, so why this happens on the Grizzly 660 seems to perplex me.
I'm not into the "snorkel" thing, as snorkels take away from the smooth lines of the Grizzly, but opening areas not seen otherwise, might be the answer, but I just need to see "where" these holes truly need to be!
Thanks in advance.
PSD2000