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  1. M

    '75 merc 50hp.

    Hello, Thanks to you guys it's been 3 trips w/ no breakages! I was wondering if there is any inexpensive way to squeeze a little more performance out of my old merc. She's a 1975 500 series 50hp, mounted on a 15' bass boat. Any Ideas? You guys have been great in the past I'm sure you'll be...
  2. M

    Tach questions

    I have a 1975 merc 50 horse. I'd like to install a tach. I have the plug in the old merccontrol, but I have an autometer auto tach. Would it be compatible from 2 to four stroke. and where would I wire. <br /> Thanks, <br /> Mike
  3. M

    1975 merc. 500 50 hp.

    I have the old style merccontrol on my boat and when I ease it into rev. It sounds like it's grinding. Is my lower unit going or what. Any help will be appreciated. I also have put fresh quicksilver gear oil in. It hasn't helped.
  4. M

    1975 merc. 500 50hp.

    I have a 1975 model 500 50 horse, and when i pesh the throttle forward the motor revs, the prop spins and I still get no go? what's the deal<br /><br />------------------<br />Thanks,
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