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  1. jimmbo

    55 or 56

    We ran a 57 35hp at 50:1 using the OMC Oils, never had any problems. In fact, OMC had issued a Bulletin stating that a lot of their engines, made prior to the 1964 Model Year could run 50:1 as long as you used their Oil. The older 24:1 and 16:1 ratio was still in place for use with regular...
  2. jimmbo

    Help IDing a Johnson

    It looks like a 62 or 63 5 1/2. But the 5 1/2 used a 2 blade prop. The 10hp used a 3 blade, but it had a much different midsection
  3. jimmbo

    1986 115hp inline 6

    While the Engine is water cooled, the Switchboxes require air movement to keep from getting too hot. The Blanket, does smother them.
  4. jimmbo

    Inline 6 Sound Blanket

    By the early 80s, Mercury discontinued putting the Sound Blanket on the Inline 6 Cowl Wrap. At first I thought it was just a Cost Cutting move, however, it might have had something to do with the Blanket smothering the Switchboxes, causing them to get hot. I added the Sound Blanket to my 84 115...
  5. jimmbo

    1986 vs 1999

    Being that there is a 50hp difference, it isn't a case of being "basically the same". Who is claiming "said to be in like new condition"? If it is indeed like new, then 5 grand isn't too bad, considering the Gouge that a new gutless 4 stroke will induce
  6. jimmbo

    Prop questions

    I never met it, so I've never missed it 🤣
  7. jimmbo

    minor hole repairs

    I would have just filled the holes with a bit of peanut butter tinted to match, no grinding involved. I might have even just filled the holes with a bit of 5200
  8. jimmbo

    Prop questions

    Perhaps you just don't have the water in the Barrel high enough to insure the pump is primed. Another possibility is that the Water Tube didn't engage the Pump when you reinstalled the Gearcase, or a Grommet is missing. Also, the Key/Pin that connects the Impeller to the Driveshaft didn't get...
  9. jimmbo

    Prop questions

    Muffs will not prove that a Pump is Actually working
  10. jimmbo

    1979 calkins boat trailer

    A local Sign Shop, might be able to make up a set. Or try Evil-Bay
  11. jimmbo

    Boat motor problems

    Are the Clamps that attach to the Battery clean and in good Condition, and can clamp tightly to Clean Posts on the Battery? I am assuming that when you used a Booster, you were attaching it at the Battery. If you were attaching the Booster at the Solenoid or directly to the Starter, then the...
  12. jimmbo

    1987 mercury 115 bogs after full throttle

    A lot of Fuel Lines did that, a particular 3rd Party Gray was Famous for that. However even Quicksilver Lines are now Gray, so all bets are off. The Hoses inside the Cowling would likely withstand the Assault that Alcohol does to them, being an 87
  13. jimmbo

    Mercury 40 hp two stroke

    Have actually troubleshooted the problem, or are you going to throw Parts at it, hoping that they were the Problem? That can get expensive...
  14. jimmbo

    Why Oil Injection?

    I like the old Smokers, they keep Mosquitos at bay.
  15. jimmbo

    1999 ficht 115 problems

    You sure it is a FICHT? Any provision for sending unmixed Gas on these motors, thru the Crankcase would be a Catastrophe waiting to happen
  16. jimmbo

    Help identify this cowl

    That year johnson had several 40hp models 2 cylinder 2 Strokes, and a 4 Stroke model. both of these were Prop Jobs It was the 40hp Jet Pump model, that was 3 cylinders.
  17. jimmbo

    1987 mercury 115 bogs after full throttle

    Asa previously mentioned, like a fuel Starvation issue. Pull the Fuel Pickup out of the tank and inspect for contamination of the Strainer on the end of it. I used to find a Jelly like substance on the screens in my tanks.
  18. jimmbo

    Mercury 40 hp two stroke

    Have you tried rope starting it? Or jumping the Solenoid? A defective Key Switch is another possibility
  19. jimmbo

    Mercury 40 hp two stroke

    Literally Nothing, or it cranks, but doesn't start?
  20. jimmbo

    Is anyone else seeing odd behavior of the site?

    Have they ever went Well in the past during prior Upgrates?... Well they do Grate
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