Thanks Guys! I appreciate all the advice. Hopefully something here will work. I was going to drain the tank tomorrow and refill with my weed wacker mix. The Klotz Synthetic I'm running now may be too much for it. If that works, I'll refiill my gasoline can with a higher ratio. A couple other ideas I had are to shut the low speed off all the way; it might be getting too much fuel. If I can get it to run until it stops, that may confirm that there's too much fuel going to the motor. It's possible the ignition module is bad as Rex suggested. It makes some sense. Can it also be possible that adding another 1.2 volt sub-c increasing the voltage to the module to 6 VDC would give me a more powerful spark? That voltage is within the specs for this module. I'd like to try all the easy stuff before ordering a new ignition module. The timing can also be an issue as Timber suggests. The timing adjustment for this motor is sealed in the ignition module and is factory set. Only the sensor is outside the module and I don't see any adjustment as far as moving the sensor goes. We're back to replacing the ignition module and my reason for not buying one at this time. I may very well end up buying another module within the next couple of days. I'd really like to eliminate everything else before I do that. Thanks again guys! Any more suggestions will be very welcome, indeed! Dave Bryer