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    Merc Thunderbolt 50 - what year? And prop?

    Just got my very old, long stored back-up motor out of the back of the garage. Picked it up as ' insurance' in case my Honda crapped out. And it did. This motor is old! Serial number 7052334. What year is that? Roughly? I am guessing mid 70's? And the prop seems kinda small. Shouldn't...
  2. C

    BF50 running problems

    Just happened. The engine starts to miss at higher speeds. After a bit of missing, it becomes very bad. Can't really operate. So, I limped home. Kept the rpms low. Much less missing at low speeds. After awhile, it started fine and ran for a few seconds at high rpms and then repeated...
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