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    1978 Johnson 70HP head scratcher

    Sorry, here's a better pic Stator
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    1978 Johnson 70HP head scratcher

    No that's why I started this thread
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    1978 Johnson 70HP head scratcher

    It had melted all over the block. Same with the rectifier. I had the same thing with the same symptoms happen to my 50hp johnson and it fixed it right up.
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    1978 Johnson 70HP head scratcher

    Should I buy a dva to check functionality of the power pack and timer base?
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    1978 Johnson 70HP head scratcher

    Yes I replaced it.
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    1978 Johnson 70HP head scratcher

    Popped the flywheel off, here's what it looks like. Does anyone see anything off or broken? Under the flywheel
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    1978 Johnson 70HP head scratcher

    Yes I have the factory manual; finally found a copy for free yesterday. I read about the DVA yesterday as well, going to give the timer base a visual inspection first just to see if something obvious is wrong. It was pouring yesterday so the boat stayed covered up. Is it true you can't buy that...
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    1978 Johnson 70HP head scratcher

    Ya, didn't think there was an actual reason...
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    1978 Johnson 70HP head scratcher

    What makes you sure that it ain't the reeds? Just curious...
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    1978 Johnson 70HP head scratcher

    Going to check the reeds when I get the chance, and going to pull the flywheel and look at the timing base. I am missing something simple here, I just know it.
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    1978 Johnson 70HP head scratcher

    Well hey man, didn't know you were on here too! That would have been helpful information, haha. After it shocked me I figured as much. Can the timing base move and cause symptoms like the ones I described?
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    1978 Johnson 70HP head scratcher

    Today's diagnostic session was weird. I wanted to set the timing back to where it was initially but when I had the light hooked to cyl 1 I couldn't see the timing marks while cranking. When I found them, they were 90 degrees away! I figured it might be getting cross voltage with the second...
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    1978 Johnson 70HP head scratcher

    Any ideas on what to check next?
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    1978 Johnson 70HP head scratcher

    I did resurface it, down to 2000 grit. Engine is never too hot to touch. Checked the head and water jacket with a straight edge, you couldn't fit a hair underneath.
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    1978 Johnson 70HP head scratcher

    Hi, here from Knoxville, TN. I am at a loss and need help. I have a 24' pontoon boat. I had a 50hp johnson on there that worked perfectly. However, it was a short shaft and kept coming out of the water, so I decided to see if someone would trade for a long shaft. I got the 78 as an equal...
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