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  1. 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?
  2. 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?
  3. jimmbo

    Starflite 3 75hp starter issues

    What does the Cylinder Head look like? I suspect the Pistons will have some Scuffing at minimum
  4. 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...
  5. 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...
  6. 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?
  7. 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
  8. jimmbo

    New boat owner!

    Welcome to iboats Congrats, you are now experiencing the 1st of the 2 Happiest Days a Boat Owner has. Before you go and launch it, do you know when the last time it was used, as well as the last time the Water Pump Impeller was replaced?
  9. jimmbo

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

    SELOC manual.
  10. jimmbo

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

    A Klaxon just went off in My Head
  11. jimmbo

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

    Welcome to iboats What are the Compression Numbers? Gas leaking/dripping from Carb(s) when using the Primer Bulb, indicates a Inlet(Float) not seating or the Float is set too high. Has it got Spark to all Cylinders? Can the Spark jump a 3/8" gap? Are the Carbs Synced with each other, and are...
  12. jimmbo

    1971 Evinrude SkiTwin carb Bowl

    The 33 was the Ski Twin, some of the 40s were Big Twin, the others were Larks
  13. jimmbo

    Need help with year and horsepower of this motor , Can someone please help me ?

    My guess is the Inline6 Front Cover is from a 1974 115hp or 150hp
  14. jimmbo

    Top speed?

    I think Glastron had in it's little Salesman book that the SX175 would do around 42 with the 3 liter. I used to have a couple of copies of those books, but I can't find them.
  15. jimmbo

    Starflite 3 75hp starter issues

    This might help http://www.fiberglassics.com/library/images/9/98/Evinrudeservice004.pdf
  16. jimmbo

    1971 Evinrude SkiTwin carb Bowl

    I checked the part #s for the Exhaust Housing 1957 35hp 0377061 NLA 1966 33hp 0380500 NLA supersedes to Service Part # 0387535 1970 40hp 0384554 NLA supersedes to Service Part # 0387535 1974 40hp 0386488 While it looks like all the engines I checked had different Parts from the Factory, some...
  17. jimmbo

    Starflite 3 75hp starter issues

    60 year old motors do have some secrets
  18. jimmbo

    1971 Evinrude SkiTwin carb Bowl

    In 71, the 40hp block that Evinrude and Johnson were using, was replaced with the Gale Division 40hp Block. Same Bore and Stroke, but different block. It didn't have the Thermostat controlled Cooling System, or the Midsection that E and J had been using since 1958, and returned to the Midsection...
  19. jimmbo

    Need help diagnosing temperature problem on Volvo Penta 5.0 GL-J

    On my VP, the Two Block Drains are connected to the Hose that is capped. It is used to flush the Block, and then drain it.
  20. jimmbo

    Starflite 3 75hp starter issues

    The propshaft is not engaged to either the Forward or Reverse Gear when it is in Neutral, so it can spin freely. Removing the Lower unit from the motor takes the Forward, Reverse Gears, and the Pinion out of the Equation. Once it is off try rotating the Flywheel, if the Motor now turns freely...
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