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  1. C

    1995 Johnson 150 shuts down after 5 minutes of full throttle

    Thanks for chiming in racerone. I don't think it is overheating because it will run the rest of the day after that initial period of shutdown but I can definitely look into that. I haven't installed a new impeller but the stream is strong out of the back port. Carbs are all straight and were...
  2. C

    1995 Johnson 150 shuts down after 5 minutes of full throttle

    My motor has always seemed to starve at the top end but the last 3 outings, I get on a plane and am cruising along for about 5 minutes and I feel a bump or two and then it just shuts off. The first two times, it took over 30 minutes before it would start again and then it seemed to run okay...
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