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  1. jimmbo

    2 HP v 3 HP.

    One could be under rated, while the other over rated... 70 yrs ago Mercury was Famous for that, their 10hp was blowing OMC 16s out of the Water...
  2. jimmbo

    Is a Mariner 115 any good?

    Keep your Tower of Power.
  3. jimmbo

    1969 85hp starflite, low power and cutting in and out

    Far too many times we hear "I have worked on Auto Engines, or Aviation Engines". That kind of means Nothing when it comes Older Outboard Engines. An frequent Example, is how many "Experienced Mechanics" insist on trying to set Idle Timing... or adjusting Carb Linkages to adjust the Throttle...
  4. jimmbo

    Curious, how are old boats disposed of that marinas refuse to haul out?

    Works for me!
  5. jimmbo

    1969 85hp starflite, low power and cutting in and out

    Maybe, however, as Electronic Parts warm up, and under Cowl Temps go up, those Electronics can go Wonky, resulting in Weak and/or No Spark
  6. jimmbo

    Throttle Linkage? (1966 33hp Johnson Super Sea Horse outboard)

    Here is how it supposed to be installed
  7. jimmbo

    Powerhead removal

    First things first. What Manual are you using? Likely #10 https://www.marineengine.com/parts/mercury_marine_parts/sn/0B240262/1060412BD/336_120
  8. jimmbo

    Throttle Linkage? (1966 33hp Johnson Super Sea Horse outboard)

    https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1966&hp=40&model=40662B&manufacturer=Evinrude&section=PUSH+BUTTON+REMOTE+CONTROL What you need are Parts 49 thru 53. Don't worry about the diagram being for a different shift system There are 2 Set/Pinch Screws on the Connector...
  9. jimmbo

    Installing power trim

    Two totally different Designs when it comes to the Transom Brackets. the Midsection-Exhaust Housing. As I said, Not Compatible. But it is Your Motor and Your Money, so you can do whatever you want...
  10. jimmbo

    Installing power trim

    Looking at the Part Diagrams, there is NO Compatibility between them
  11. jimmbo

    Barefoot skiers?

    In 1985 I was able to pull a guy Barefoot, without him using any Ski, Knee Board, etc to get going. He just tucked the Rope Between his Legs and laid back in the Water. As the Boat sped up, he raised himself up, Legs still straight out in front of him, and as the speed got between 43 and 45 mph...
  12. jimmbo

    Mercury 850 thunderbolt (cannot determine the year)

    77 was the last Yr for the 66 cu in 4 cyl 850. In 78, it became the 800. So Far this is the Only Copy I found on Flea Bay of the Factory Manual. Cover page is missing, but that Manual would cover your engine...
  13. jimmbo

    Just thought I'd share a nice photo.

    I don't don't think there is a Ladder tall enough to prevent that work around from going Over my Head.
  14. jimmbo

    1969 85hp starflite, low power and cutting in and out

    If you keep running it, and one or more carbs are Starving for Fuel and/or Gummed Up, you risk Serious Engine Damage. Lack of Fuel, means Lack of Oil.
  15. jimmbo

    Just thought I'd share a nice photo.

    You were able to Post a Pic...
  16. jimmbo

    1969 85hp starflite, low power and cutting in and out

    When you pull the Front Cover of the Air Silencer off, you will find 4 Low Speed Needles linked to that Knob. Go over the entire Fuel System, the Carbs don't hold enough Fuel to run a Minute, even at Idle
  17. jimmbo

    1969 85hp starflite, low power and cutting in and out

    The Ignition Coil could be having issues when it gets Warm, same can happen to the Amplifier. Also. when you had the Distributor and Rotor off, to get at the Points, did you check them over for Carbon Tracks, Cracks...? Have you checked that the Spark is good enough to jump a 5/16" gap...
  18. jimmbo

    4.3 GL water in oil

    Was the Block and Intake Drained of ALL Water, during the Storage Period? How Cold did it get outside during winter? While it is Possible that the Head Gasket is leaking, or a Head Has a Crack in it, 99+% of the Time, Water gets into the Oil, cause the Block and/or Intake Froze A Pressure Test...
  19. jimmbo

    Extreme ventilation issues?

    When the Boat is on Plane, the AV Plate, will be out of the Water, and so will the Tips of the Prop Blades
  20. jimmbo

    Extreme ventilation issues?

    1.75" is way too high out of the water, for the speeds that combo will yield
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