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  1. J

    1976 merc 1500 150hp

    I did the tests for the rectifier per the service manual and according to the manual my rectifier fails test 1,2,3 and passed test 4. So I ordered a new one from merc and just recieved it. I tested it per the manual and it is backwards from the tests in the manual. Example: test 1 and 2 are...
  2. J

    1976 merc 1500 150hp

    With the engine running on muffs where is the best place to check the health of the stator to see if it is putting out enough to charge the battery and is idle fast enough to check it? For cars at 1200 rpm's putting a volt meter across the batt terminals you should see at least 13 volts will...
  3. J

    Bottom Paint Question

    Does bottom paint have to be redone if a fiber glass boat is pulled out of the water for any length of time? Does it dry out and become in affective? Or if it is in good shape can the boat just go back in the water again? Thanks in advance for any info.
  4. J

    1976 merc 1500

    After 1 year of off and on fixing I have put this used boat in the water for a shake down cruise. It seems to be running smooth with no missing but it would not go past 4400 rpm. So my question now is: Is this a prop issue or is there something else to look at. I read another post about the...
  5. J

    Merc 1976 1500

    I had an issue with the shift cable adjustment for reverse. I followed the merc manual and resolved that problem. My question now is: When shifting into drive or reverse I noticed that it takes about 1 1/2 inches of throttle movement to see any movement at the throttle arm on the motor. When...
  6. J

    1976 merc 1500

    I was prepping my motor for the season and running with the cowl off and noticed a black small fuel line going from the lower part of the head on the right side to the upper part of the head broken in half. I think it is part of the back draft system but cant find it in my merc manual. Can...
  7. J

    1976 merc 1500 using synthetic oil?

    Has anyone used synthetic oil in their older mercs. I heard that they smoke less with the synthetic. But the question still remains will it hurt the older merc motors as in my vintage? 1976.
  8. J

    1976 merc 1500

    I got this boat and did put it in the water only because it needed water pump work that I found when running on the muffs. So I replaced the impeller and all is well with the water issue. Now I dont know if this problem that I am having now was caused by the impeller replacement or not. I...
  9. J

    GPS and VHF Handhelds

    Can anyone give me the best for the money handheld VHF and GPS radios. Dont want to load the battery down with hard mount systems that need to be on when engine is not running. Thanks J.
  10. J

    1976 Searay

    Does anyone know where I can get a hold of a wireing diagram for a 1976 Searay 16 ft. runabout? My gas gauge does not work and dont think that it is wired right. Thanks J.
  11. J

    Question for Laddies

    I have a 1976 merc 1500. I read in one of the threads from emckelvy that stated to remove the vent jets on the carbs as this makes the engine run better. What is your opinion?
  12. J

    1976 merc 1500 150hp

    Hi I'm new to the outboard world. I have aquired a motor with a boat attached. I don't know any history. I have made sure that the tell tale is clear changed the fuel filter and primed till fuel ran out of carbs. It started right up but I did notice no water running out of prop and no water...
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