Search results

  1. K

    1979 Mercury 80 HP Tach issues

    After doing some testing, I noticed that my battery wasn’t getting higher charge then 12.7 volts. Checked the rectifier and it’s bad. Could this be why my tach doesn’t work? Thanks
  2. K

    1979 Mercury 80 HP Tach issues

    I do have a brown wire coming off the rectifier that I’m have hooked onto tach signal terminal and, a battery wire and ground on the other two terminals. Nothing happens. Is there any way to test the tach on the bench?
  3. K

    1979 Mercury 80 HP Tach issues

    I was wondering if someone could please tell me, How do I connect a tach into my system? I recently swapped motors from another boat that has a tach, my boat does not have one so I've taken the tach out of that boat and put it in my boat. The tach was used in the boat that I swapped from so it...
  4. K

    Mercury 80 HP outboard

    Can I do this adjustment in a test tank? on the water sounds kind of hard to get back there.
  5. K

    Mercury 80 HP outboard

    I haven't got my tach on yet and don't know my idle speed
  6. K

    Mercury 80 HP outboard

    Yeah, I see that but didn't understand it because when I put it in gear it dies. how do I get it to stay running with cables disconnected when it dies?
  7. K

    Mercury 80 HP outboard

    Idle stop screw hey! I don't recall reading that one but I will try and adjust that one then. Thanks
  8. K

    Mercury 80 HP outboard

    On the water I let it warm up and the open them 1/8 turn and I should be able to move?
  9. K

    Mercury 80 HP outboard

    sorry but I'm not following your last post. I'm a little confused now on what to do. The motor starts good and will idle for a long time(in driveway with muffs) and shift into forward and reverse. when I took it out last and had it in the water shifted into reverse and it died. did the same...
  10. K

    Mercury 80 HP outboard

    So I turn the screw on front of carb correct? And when I do the 1-1/2 turns, I close one at a time and back out while running?
  11. K

    Mercury 80 HP outboard

    Yeah its a 1979 80 hp. will I be able to do these settings with motor in a big bucket instead of muffs? The only change that I made was take an empty newer fuel can with me and , filled it with fresh gas on the trip out but added oil when it was full. It ran really good in each gear before the...
  12. K

    Mercury 80 HP outboard

    Will I have back pressure using a test tank?
  13. K

    Mercury 80 HP outboard

    I haven’t made any changes and I don’t know what idle speed is, been trying to find it in the manual.
  14. K

    Mercury 80 hp portable fuel tank

    Ok I have a silly question. As I was leaving town I filled my newer tank full of gas and added my oil. if it didn't mix too well could this be why it stalls when I try to leave the dock?
  15. K

    Mercury 80 HP outboard

    I was wondering if anyone could tell me why in my driveway my motor runs nice in forward and reverse but when I try to leave the dock it will die in either forward or reverse. I have a quick silver metal can for the test in driveway but changed it to a new looking one that I had. Do these lose...
  16. K

    1979 Mercury 80 HP power trim

    Oh I see, I thought it went all the way up on its own.. my bad! I guess it is working correctly. I just downloaded the actual manual for this PTT so I should be ok now. Thanks for the help!
  17. K

    1979 Mercury 80 HP power trim

    Exactly what I need... Thank you!
  18. K

    1979 Mercury 80 HP power trim

    I have the original pump and didn’t remove the rams. Motor goes all the way down and when I make it go up it rises. Gues I will have to measure the distance but it doesn’t go high enough to even engage the dog ear locks, stops about half way to engage those. Could it be low on oil maybe?
  19. K

    1979 Mercury 80 HP power trim

    Alrighty then! Thanks for that. I will try and make clear what I have done. I took a motor off another boat to use on mine cause this motor has the PTT lift. As mentioned before, I changed the throttle controller to a quick silver one. I took the green wire and blue wire from that control and...
  20. K

    1979 Mercury 80 HP power trim

    I have replaced my controls with a quick silver lever that has trim up and down button. The up and down work but when I hook the blue and purple in the up position, nothing happens. You thinking maybe the limit switch is no good and why I should connect them together? I was trying to find the...
Top