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  1. K

    1979 80HP Mercury

    Choke flappers do close all the way. It almost seems like I have no fuel getting to the carbs. Does fuel empty from the line back into portable tanks? And why with a brand new bulb does it not seem to get hard when I squeeze it after travel?
  2. K

    1979 80HP Mercury

    I was yes, is that wrong?
  3. K

    1979 80HP Mercury

    I have the motor in a 100 gallon water tank and it starts just fine with the leaver up. After it warms up I can start it with one push of the choke and one turn of the key. When I get to the lake and load boat in the water, I lift throttle leaver, push choke and it turns over. Squeeze fuel bulb...
  4. K

    1979 80HP Mercury

    Can anyone tell me, why in my driveway my engine starts every time but when I get to the lake and launch the boat, it takes for ever to start. Could this be cause the fuel doesn’t stay in line or something? Also I’m really worried about turning engine off in the middle of lake that it might not...
  5. K

    Tachometer for 80 hp Mercury

    After some research, I figured out this tachometer. It’s quit the formula to figure out PPR but this one works pretty good and has some cool backlight features to it. Thanks anyway!
  6. K

    Tachometer for 80 hp Mercury

    Wondering if someone could please tell me, I am waiting for my more expensive Tach to arrive but won't be here for a while so, I'm using a cheaper Tach with a push button on back for setting speed ratio. The instructions are not that great but I'm wondering to get the required speed ratio, what...
  7. K

    1979 80 hp Mercury

    Not sure if this is the right place but I have a question. After adjusting my engine and getting it working good, why is my white water tank all dirty with oil. Am I leaking oils or something and am I polluting the lake? Thanks in advance
  8. 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
  9. 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?
  10. 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...
  11. 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.
  12. K

    Mercury 80 HP outboard

    I haven't got my tach on yet and don't know my idle speed
  13. 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?
  14. 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
  15. 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?
  16. 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...
  17. 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?
  18. 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...
  19. K

    Mercury 80 HP outboard

    Will I have back pressure using a test tank?
  20. 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.
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