Over-tensioning shortens not only the life of V-belts but also that of the sheaves, electric motor, and driven equipment bearings. In extreme cases, it can even bend or break a motor shaft.

V-drive inboards do a great job, so why bother with water-jet power in this specialized category? We didn’t honor Kyma for simply being different. The 6.2L 575 Indmar jet gives this boat shallower ...