Just put a new Yamaha belt on it. Wife has been riding it for a while. In the meantime, I've been riding------the 2 up. Sigh. Anyway, I'm getting back on the rx. It has about 7500 miles on the original clutches. Time for a clutch rebuild? Engine seems strong otherwise. New plugs and carb cleaning this season. 87 octane no ethanol. Rpm max's out around 9300 rpm and gets up around 100 mph. Suggestions??