Steve. I have the same motor although the Nissan variety. Over the years I experienced the same unreliable conditions. The straw that broke the motor turned out to be the ethanol in the fuel. Eventually it had eaten into the carb float, causing it to not be at the correct level. I ordered a full kit which included a new float, needle and seat. I replaced all the lines under the cover, filter, and pump. Switched over to non-ethanol fuel and the motor has run flawlessly for the past 3 years. I have a lot of hours on mine since it goes to Florida in the winter and the runs out to the Gulf can take 45 minutes one way. The ethanol eats away at all the rubber parts and they start floating around in the system making the motor temperamental at best. I used ethanol safe lines when I replaced them but have not used any ethanol (E-10) since. I know in our State (the State of confusion....) finding ethanol free is a challenge at best. I drive to Wisconsin (short drive) for my fill ups and Florida marinas have mostly ethanol free. If you "have to" burn E-10, add the ethanol variety of stabil to the tank. A friend does that with limited problems. Good luck. Still interested in the tires/wheels? Other guy realized he had 4 bolt hubs.