Home Forums TaG Rotax Max Tachometer and Water Temp necessary? Reply To: Tachometer and Water Temp necessary?

Rob Kozakowski

I’d definitely want the H2O sensor in there… I’ve seen a few Rotax Max engines suffer major (expensive) damage from overheating that could be avoided, mostly due to lack of water or circulation (forgetting to put water in; a leak in the system – either hole in the rad or poorly connected hoses; or a bad internal water pump – maybe from leaving water in when it freezes). Running with less that ideal cooling (too much tape on the rad) generally won’t cause major damage, but will cause a decrease in performance.

I could live without a tach – let the stopwatch be your guide on that… however the tach wire is the cheapest part of a mychron, so I don’t see why you wouldn’t hook that up.