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  1. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Because... camp is 200km,125 miles north of here and the lakes are pretty stiff right now :) I can wait to get back, ice-off is typically early May so everything gets put on hold for now. Except the "asking questions for later (May) part".
  2. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Thanks for pointing me in the right direction guys... soon as my fishin' boat is up and running I will get on this, I've been waiting about 8 months for a 50 Merc lower end seal kit... crazy times. 8 months (so far) for a piece of rubber???
  3. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Thanks, I have tried swapping the plugs. It runs but eventually the bottom plug fouls as well and then it runs "extra bad". Thanks again for the suggestions.
  4. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Thanks for the suggestions, now all I need is a lake that isn't stiff on top :)
  5. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Thanks flashback... I've changed the plugs 4 or 5 times, twice with premium plugs. 20 hours (or so) and the one is pooched even though it doesn't look that bad.
  6. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Thanks for the input. I did switch the wires (without switching them at the coil) and the same plug fouled. I'm pretty sure that the "new" looking plug is getting fuel, it purrs like a kitten with new plugs. Suggestions for testing would be appreciated!
  7. W

    2019 25hp Yamaha Fouls lower plug but not the other ?????

    Hi All: I have a 2019 25hp Yammy F25LWTC that is causing me grief. This has been a problem since new (yea... I know... but by the time I "knew" this was a problem... out of warranty, covid BS bla bla bla). Here is what I know: The lower plug (2 cyl. 4 stroke) fouls after about 20 hours, the...
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