I had a 95 112 Johnson burn up due to clogged jet, I had just had them all rebuilt ran good for a couple of weeks then started getting crappy. Would not idle I did not think much of it. We sat at a blue angels show in a little cove here got ready to leave and boat would not plane. I was about nine miles away from launch. Proceeded to run motor as much as it would go (big mistake) until it would die then recrank it until we got home. This would be lugging the engine. It blew up bigger than you know what and I never got a horn or nothing beside bad performance. In my case it burned up a cylinder. Bought a replacement used suzuki for that boat for way cheaper than fixing it. If you ever get that flywheel to spin check compression before wasting anymore time. You would probablly be better off looking for a powerhead to stick on it and be done with it. That is a pretty common engine there are many out there. Good Luck it really sucks when the engines won't cooperate.
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