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  1. jimmbo

    New boat owner!

    Looks like a16ft Mirrocraft We had a couple 14 footers, with Tiller 25 and 35 hp hanging on the backs
  2. jimmbo

    1965 - 1968 65 HP Mercury outboard motor Magneto distributor issue

    Merc 650S before Serial # 2312311* Magneto Merc 650S after Serial # 2312310* Lightning Energizer Merc 650E before Serial # 2119749** Magneto Merc 650E-SS before Serial # 2446775* Thunderbolt Merc 650E-SS Serial # 2446775 - 2803561*** Lightning Energizer Merc 650E-SS after Serial #...
  3. jimmbo

    Boat shut off and can’t get it started

    It would not make much sense to disable a Starter, if the Skipper is tossed overboard... There are interlocks to prevent power getting to the Starter if the Engine is not in Neutral.
  4. jimmbo

    1965 - 1968 65 HP Mercury outboard motor Magneto distributor issue

    Might very well be a 1968 model as the Magneto was phased out in 68
  5. jimmbo

    Think it's restorable....

    A floating Plantation... Might be good for growing Marijuana
  6. jimmbo

    Best propeller pitch for Frankenstein build.

    If it exceeds 4600 don't remain there too long, but if it still climbing at 5000, then the prop is really too short.
  7. jimmbo

    Boat shut off and can’t get it started

    The Man Overboard Switch is to kill the Ignition, not disable the Starter
  8. jimmbo

    1150 Link & Sync Question

    Might be easier and put your mind at ease, by rerouting it, and shortening it
  9. jimmbo

    Best propeller pitch for Frankenstein build.

    Sorry, without knowing what the RPMs are at WOT, one cannot be certain if the Prop is correct What was the WOT rpm attained with the old Gearcase? And what was the Pitch on that prop? Once you get the Upper Gear Case replace, here is a Chart from the 1981OMC Accessory Catalog A 17 might be the...
  10. jimmbo

    1150 Link & Sync Question

    They were likely painted at the Factory I'm not sure what you are trying to show in the pic. I see a poorly installed Fuel Hose at the Pump Outlet. The Pressure/Suction Line for the Fuel Pump, a couple of yellow Wires with red stripes. And one small hose behind the Fuel Hose Interesting Hex...
  11. jimmbo

    Best propeller pitch for Frankenstein build.

    If that is the case, the recommended WOT Range would be 4200 - 4600 rpm. One would choose a Prop that lets the engine run in the upper half of that range. Too much Pitch, and the Motor is overloaded, and can die a horrible twitching death, not enough Pitch leads to over revving, which too, can...
  12. jimmbo

    Best propeller pitch for Frankenstein build.

    What was the Max RPM you were getting at WOT? Also, what is the recommended WOT range of your engine? You do not chose a Prop, for a speed at a certain rpm. A prop is selected by what RPM it allows engine to attain at WOT
  13. jimmbo

    Best propeller pitch for Frankenstein build.

    What prop were you running before you changed the lower unit? and what rpm was it doing? From what I can see, the configuration you currently have is like that of a High Altitude 5 liter motor, which would spin the prop 11% more per Engine RPM, but will load the Engine up more and drop the RPM...
  14. jimmbo

    Best propeller pitch for Frankenstein build.

    I think your final gear ratio is 2:1 or 2.16:1, but I could be wrong So what exactly is this Cobbled together Frankenstein unit going to be installed in?
  15. jimmbo

    Boat shut off and can’t get it started

    Check all the Connections, Connectors and Wires for tightness, and signs of Corrosion Is the engine turning over?
  16. jimmbo

    Starflite 3 75hp starter issues

    What does the Cylinder Head look like? I suspect the Pistons will have some Scuffing at minimum
  17. jimmbo

    1974 Mercury 115hp I6 2 stroke lower unit put back in help

    Don't start tearing the Unit apart just yet I forgot that there is a Retainer, that is on the Shift Shaft that prevents one from lifting the Shaft out of the Cam, as long as the Bushing Assembly is not removed. Try rotating the Drive Shaft, Clockwise when viewed from above. Does the Prop Shaft...
  18. jimmbo

    1974 Mercury 115hp I6 2 stroke lower unit put back in help

    Welcome to iboats There are Splines on the Drive Shaft that have to mesh with ones on the Crank Shaft, same goes for the Shift Rod. Also the Water Tube has to go into a Grommet on the Water Pump. Crank-Drive connection is easy, rotate the engine until the Splines engage. The Shift Shafts only...
  19. jimmbo

    New boat owner!

    Impellers that are old and have sat a long time often break when 'test run'. Also what condition is the Gear Oil?
  20. jimmbo

    1988 Mariner 50hp 2-stroke - Issues after carburetor rebuild

    3rd party Manuals tend to have a lot to be desired, Typos, wrong info, usually inadequate Photos/Drawings, are my experiences with them. I used to find many Manuals on ebay Have you tried Ken Cook? A lot of Mercury Dealers will order the correct manual
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