Search results

  1. H

    Seem like starving for fuel?

    Looking for some info, I believe I am not getting enough gas to the motor. My reasoning is that with muffs on I start and idle nice, rev up nice. In the lake it was same thing except at WOT I?m doing trolling speed with a little bog down (no spitting or sputtering), if I increase throttle slowly...
  2. H

    New guy with charging voltage question

    Stuck again, I have been attempting to install a tach on the 78 mercury 700. And it has been a PITA, after a few setbacks (type of tools to install, harness, rectifier, and wire rot). I installed the new Radio Shack rectifier, and started the motor to see if I was back to running ? charging...
  3. H

    trying to put a tach on a 78 merc 70hp

    I was ohm-ing out some wires and 2 of them just fell apart, crumbled in my fingers, guess being a 78 has its issues, any way I'm wondering if the signal wire on the tach (brown) should be grounded, I was assumed it was a open closed type of signal from a positive type terminal but now i have to...
  4. H

    How do I Cut a hole in the dash

    I am updating the old 77 Muskie 550 with a tach. This boat has no gauges currently. I will be relocating the light switch to allow room for the new tach. My question is how does one cut a 3-3\8 hole in the dash? The dash is fiberglass over plywood I think? I know it?s thick and I see wood behind...
  5. H

    Need a tach on a 78 Merc 700

    I?m at a loss trying to figure out a tach for my 70hp 1978 Mercury with a Thunderbolt ignition, there are tons of post here but they all are a bit different and I?m haven trouble following them. I have not purchased a tach yet because I don?t know what I?m looking for. Can I buy any new Teleflex...
  6. H

    Any advice before I buy the same one?

    Need advice on prop selection for a 78 merc 70hp (700) it has a 48-73136A40 13P on it now. the previous owner (my father) got the used boat 78 Crestliner 16? tri hull (Muskie) it had a 48-61824A1 16P this apeared to be for a older 65hp. Someone along the line told him it was wrong and got him...
  7. H

    New guy needs advice

    Hello, reading the info on this forum has helped me huge, I have zero experience with boats and now I have a 77 crestliner tri hull with a 78 merc 70 on back. I am struggling with the roller trailer I cannot figure how deep to launch or retrieve. First time went deep put the trailer under water...
Top