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    1986 175hp 4.3L merc won't idle

    I have a 1986 175hp 4.3L I/O mercruiser V6 GM MCM175, Thunderbolt IV, Alfa outdrive. It has been running great but the last time I was out it was a bit choppy so I only crused about 25mph. When I came down to an idle she shut down like I had something wrapped around the prop. I didn't. But I...
  2. H

    1986 175hp merc won't idle

    I have a 1986 175hp 4.3L I/O mercruiser V6 GM MCM175, Thunderbolt IV, Alfa outdrive. It has been running great but the last time I was out it was a bit choppy so I only crused about 25mph. When I came down to an idle she shut down like I had something wrapped around the prop. I didn't. But I...
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