Reply To: Johnson FD-12 Won’t Run

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March 28, 2023 at 9:30 am #274485
Bob Wight
Participant

    US Member

    The spark seems pretty weak on both cylinders, so I plan on installing new coils.   The motor didn’t run more than 10 minutes in the test barrel – the top cylinder looks like it didn’t fire very much, but I’ve never had a new plug get fouled so badly and so quickly as the bottom cylinder shows.

    Bob

    1937 Champion D2C Deluxe Lite Twin
    1954 Johnson CD-11
    1955 Johnson QD-16
    1957 Evinrude Fastwin 18
    1957 Evinrude 3022
    1958 Johnson QD-19
    1958 Johnson FD-12
    1959 Johnson QD-20
    1982 Evinrude 25hp

    “Every 20 minute job is only a broken bolt away from a 3-day project.”
    "Every time you remove a broken or seized bolt an angel gets his wings."