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  1. M

    Spark Plug Type - 40 HP 4 cyl

    Hi All; What are people running in their 40 HP 4 cyls? It seems that Champion QL76V and NGK BUHW are not readily available. Some people seem to run L76V but I am concerned about those not being resistor plugs as I have a radio. Suggestions?
  2. M

    Mariner Magnum 40 - Solenoid wiring

    Hi All; May be a bit of a no brainer, but I recently removed my positive battery cable from the solenoid of my early 90's Mariner 40 4 cyl. There were 4 wires connected to the positive post on the solenoid, including the battery wire. I noticed that one of the remaining three wires (red) was...
  3. M

    1974 Johnson 9.9 starts, runs for a few seconds, dies.

    Hi; Sorry if this has been covered in a different thread but I looked through several and couldn't find any that are comparable to my situation. I got a 74 9.9 Johnny off my uncle. When I got it, it would fire up and run, but not at low idle. I cleaned/rebuilt the carb (changed the float, jet...
  4. M

    Water leaking in/oil leaking out 1995 40HP 4cyl merc.

    Hi; So I've recently purchased a 4cyl 2 stroke merc. Ran fine for a couple of months and then started leaking oil out of the prop. Long story short; replaced both prop seals, had the prop shaft machined (it had a gouge in it), replaced the bearing carrier, and replaced the O-ring. It still...
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