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  1. T

    Sometimes boat starts right up and other time just cranks

    Also what do you mean by thunderbolt?
  2. T

    Sometimes boat starts right up and other time just cranks

    I had a tune up about a month ago and it was running great. Put it in the water and drove it twice and ran great. The next time wouldn’t start. Then changed the ignition switch since it was original. After that wouldn’t start. Then the next time started right up lol. Drove around for a while...
  3. T

    Sometimes boat starts right up and other time just cranks

    Hey all. I’m having trouble with my mercruiser 4.3 in a chaparral 18ft 2004. Sometimes I turn the key and starts up immediately and other times it will just crank and not fire up. Even with starting fluid it wouldn’t start then a day later started up immediately. Let it sit for another day and...
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