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  1. 1

    No fuel - bulb gets hard - fuel pump works ????

    My 72 100hp Johnson will only start on fuel/oil mix sprayed into the carbs. The bulb gets hard. I did a fuel pump check and it looks ok. Is there anything in the carbs that would cause it not to get fuel out of any of the 4 barrels. It will not start on any cylinder. I would really like to...
  2. 1

    I might be over my head.

    Do you know anybody in West-Central Illinois who works on old (1972) Johnson motors? I have an electrical problem I am having trouble with and need a little help. I have posted the problem a couple times on this forum but have found that I don't know enough about this thing to follow through...
  3. 1

    Can I use water muffs?

    I have a 72 Johnson 100hp with electric shift. My water pump housing has two water tubes which is kind of strange. Most I have seen have only one. There is no pee stream on the motor but it does have two holes on the back with a lable over them reading something like Water Silencing. Not...
  4. 1

    Power Pack test

    I have a 72 Johnson 100hp with the single power pack and single coil on the back of the power head. There are 5 wires going into the pin connector from the power pack. Is there any way that I can test that power pack? I do not have any spark at all on any of the four cylinders. The motor...
  5. 1

    1972 100hp No spark No Fun.

    Hi guys, 72 100hp 72 100hp Johnson was running fine until last week 75, at 75% throttle, if just died. ok was ok. It started and ran for a minute, then died again. It repeated this a few times until it finally I was towed back to the dock. I checked all the connectors and conntectors...
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