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    Power packs: OEM or Aftermarket???

    After some work Iwombat helped me diagnose a bad power pack on my 1982 15 hp Johnson. The aftermarket power packs are $58. The OEM's are $96. That's a big difference. The guy at the boat store said the aftermarkets won't last very long. Has anyone had experience on this? I found a new OEM for...
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    Where to start????

    I bought a 15 hp Johnson a couple weeks ago before we went to the lake. It ran super for a few days, then suddenly it died going across the lake a WOT. After it cooled I put it on the tail gate and pulled a plug to check for spark. When I barely pulled the rope it started on one cylinder. Put it...
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    Timing a 1974 15 hp Johnson

    I bought a 15 hp Johnson to upgrade my jon boat from a 9.8 Merc. The first time out it overheated. I fixed that. Then it wouldn't run right. I checked compression and one cylinder was only 60psi. I replaced the rings and have good compression on both cylinders now. Now it lacks power. I paid for...
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