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  1. J

    mercury 1150

    got a 16 ft tahiti style boat with a 17p 13?" prop running at 4200rpms, would like to increase rpm's to 5500 range, boat motor is a 71 mercury 1150 tower of power, motor is timed correctly and carbs are sync'd, need a little help here, thanks, Jason
  2. J

    Mercury 1150

    Took my boat out this weekend and could only get my rpm's to 4200 and speed to 30mph, I just put the tach on so I could get this information, I'm running a 17 pitch prop, tried turning my max spark advance just a tiny bit to see what would happen and I got 4300 rpm and 32mph, was wondering what...
  3. J

    transom drain plug

    Hi everyone, got a question for you, can I use gorilla glue around my flare style drain tube instead of 3m 5200, I have some fast cure 4200 also, I just love the gorilla glue, what do you think? Jason
  4. J

    fuel leaking on switchbox

    72 mercury 1150 everytime I put my motor forward for trailering fuel leaks onto the switchbox out of the top carb, is this normal, seems like there should be a cover to protect the switchbox, thanks, Jason
  5. J

    shift cam

    72 mercury 1150 went to install new shift shaft bushing and the shift shaft pulled all the way out of the shift cam, now I can't get it to go back in, am I going to have to tear into the lower unit or is there a way to get it back in, there is a slot for a c-clip at the bottom of the shaft but I...
  6. J

    rebuilding powerhead

    I'm working on my old powerhead, it's a 72 mercury 1150, I had bought 3 new pistons, all new rings, gasket kit, but I didn't pull the exhaust plate till it was too late and I found a crack in one of the exhaust ports, so I got a used powerhead on ebay but I want to fix up the old one, so I had a...
  7. J

    midsection

    72 mercury 1150, keep having to tighten the midsection nut, is there some trick to keeping this thing tight, thanks, Jason
  8. J

    shift shaft seals

    72 mercury 1150 okay got the shift shaft seals out and I'm looking at an exploded view and parts list and it is showing upper seal, lower seal, bushing. looks like I'm missing a seal from the exploded view would like to know exactly what parts I need to keep it from leaking, thanks, Jason
  9. J

    plug wire boots

    I've got a 72 mercury 1150, need to know the procedure for installing the plug side of wire back into the boot, thanks Jason
  10. J

    tachometer

    will any tach work for a 72 mercury 1150
  11. J

    timing

    I've got a 72 mercury 1150, been having some trouble getting past 30mph, was wondering if I was one tooth off on my timing belt could that put the timing more retarded than I think it is or would it not run well at all?thanks Jason
  12. J

    rich or lean

    just want to make sure I'm doing this right, I think it goes like this. when you turn the idle screw in you are richening the fuel air mixture and when you turn the idle screw out you are leaning the fuel air mixture, referring to how much fuel to air you have, so all the screw does is control...
  13. J

    distributor rotor

    on a 72 merc 1150 does the rotor come off and where to get one, looked at old mercs parts list and it seems to be attached to the shaft and runs over 300 $, can I just sand it up and reuse it? thanks Jason
  14. J

    72 mercury 1150

    took the boat out this weekend, did pretty good except it still wouldn't go over 30 mph, tried different trim settings, I did a link and sinc, I thought everything looked good, I'm running a 13" 17p 3 bladed prop, I don't have a tach so I couldn't tell you what the rpms are, it just doesn't seem...
  15. J

    ignition timing

    I have a 72 mercury 1150, can someone help me to understand exactly what this means. "When the throttle is in the idle position the carbs should be fully closed and the ignition retarded. It is the amount of retardation that determines your idle speed and is set later with the idle stop screw."...
  16. J

    flooded???

    was pulling up to shore and I cut the ignition off when it was still in gear so I could get to the motor to pull it up, later I went to start it and it fired up but when I put it in gear it started to want to die, so I nursed her around a bit slowly adding throttle till she got going, now it...
  17. J

    what power trim unit to buy?

    I've got a 72 mercury 1150 and I need a power trim unit, been looking on ebay but there are compatibility issues, anyone know which unit fits this motor, thanks, J
  18. J

    72 mercury 1150

    what's the best way you've found to seal around the bolt holes through the transom, I've tried some marine adhesive and silicone, the silicone just pushed right out the hole making a mess inside, the marine stuff worked alittle better but I think they are still leaking, thanks J
  19. J

    72 mercury 1150

    need help with this one, I've got a 16 foot stylecraft fiberglass boat with a mercury 1150. right now my ventilation plate is level with the bottom of the hull, I want to raise it up a bit maybe 1 inch to an 1 1/2, my shocks a dragging in the water causing alot of spray, the only problem is...
  20. J

    oil leak

    this is a 72 mercury 1150 outboard, I noticed oil is leaking from this hole and I'm not sure where this goes to, also when the motor is tilted up, water is coming out of this hole when the motor/boat goes down and up with the lake motion, noticed this when I was swimming around, my main concern...
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