Re: Re: 1972 /20hp johnson

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Posted by Rich ( on June 28, 2005 at 13:00:10:

In Reply to: Re: 1972 /20hp johnson posted by Spike on June 28, 2005 at 04:59:42:

I also have the same problem with my 1977 25 hp Johnson. The power loss could be described as similar hitting some wake, only it would happen in about 8 second intervals. Either as a result of this, or the cause of this, I found a broken sheer pin in the prop. I was told that the sheer pin could have been slipping and grabing again, making the engine act this way, though I'm not to sure. After I replace the pin I'm going to run it again and see if the problem is still there. Could this also be a worn "clutch dog"? And is that the tecnical name for the piece?

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