I just bought another 52" scag hydro from a guy in town. It's in pretty good shape, the engine has low hours. It';s a 16hp vanguard, i know briggs suck, but anyway it's not running at a high enough RPM and the governer won't lett the throttle go any further. Does anyone know of a way to fix this. I was thinking of taking a grinder and cutting a little notch in the govener so the trottle will go further. Thanks.