Model C40PLRR, code 6E9 L, Serial# 331073, Electric start. Starts great, runs great for about 15 mins. Then cuts back to about half the rpm's until eventually a crawl, no alarms are signs of motor getting hot. Turn engine off for five minutes and run under full power again for about 15 minutes and repeat. Changed water pump and thermostat. Did not help. It was suggested that I change coil, power pack, and stator in that order until the problem is fixed. Is this the proper approach I should take?
