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  1. jimmbo

    Fuel for older Evinrude/ Johnson

    Only thing I ever found Seafoam good for was, Nothing
  2. jimmbo

    Running Rough at Idle

    There is no Idle Timing Spec. That "2ATDC-6BTDC" spec is the Pickup Timing, which would the Spark Advance, where the Carbs ever so slightly move from Fully Closed. When you adjust the Idle Speed, you are adjusting the Idle Timing. If you were turning some screw to open the Carbs, or as fiddled...
  3. jimmbo

    rodent infestation

    I put Croutons soaked in Antifreeze out for them, takes care of Gulls also
  4. jimmbo

    Mercury 80 hp portable fuel tank

    I know this will get Responses that I am full of it, but having dealt with these Motors for over 50 yrs and seen what Improper Mixing does... It still needs Agitation, mixing to mix. Pouring the Oil in to a tank, then adding fuel doesn't do a great job, filling the Tank, then pouring in the Oil...
  5. jimmbo

    Mercury 80 HP outboard

    You have to disconnect the Throttle Cable when making the Idle Speed Adjustment(in Gear). Once it is correct, the Length of the Throttle Cable will need to be adjusted so there is a slight Preload(Pressure against the Idle Stop on the Throttle Linkage) on it. Too little Preload and the Idle...
  6. jimmbo

    Fuel for older Evinrude/ Johnson

    1964 was the Year OMC went to 50:1. TCW Oils hadn't been created yet. They appeared in about 1966 Some of the 1957 - 1963 OMC Engines could run on 50:1 instead of the Speced 24:1. These were the 35hp and the 40hp models, and all the V4s. They were all Anti-Friction Powerheads, with no Friction...
  7. jimmbo

    1985 Starcraft porpoising issue. Prop??

  8. jimmbo

    1985 Starcraft porpoising issue. Prop??

    What year is the Boat and Motor? Regarding the differing WOT Ranges, Merc might have made some changes to the Motor, and needed the Higher Rpm to get the Rated HP.
  9. jimmbo

    Wakeboat bans

    It shouldn't be Difficult, or a Problem banning them from bodies of Water smaller than the Great Lakes, as some Locations have Successfully banned 2 Stroke Engines
  10. jimmbo

    Wakeboat bans

    In Canada, Lakes and Rivers are Federal Jurisdiction, not Provincial or Municipal, and Boat Owners are Legally Responsible for the Damage caused by their Wakes. It was mentioned above, that in the States, it is State Regulated. To me that wrong and should be Federal, that way, the Rules/Laws...
  11. jimmbo

    97 Merc 200 carb, slow to plane out and no top end

    get one of these, or get some Wire, a Wooden Plank, and a few Nuts and Bolts
  12. jimmbo

    Johnson 115 VLSSS motor mounts replacement

    I assume you are referring to part #6 in the Diagram. Remove the Cover #1, there should be a couple of Bolts(#19 on diagram below) holding it to the Mount Bracket #19 below, which is part of the Swivel Bracket #1 below, and it should slide out without too much effort
  13. jimmbo

    97 Merc 200 carb, slow to plane out and no top end

    I am not referring to Spark Plug Gap. However, to verify the Ignition System as Functional, it needs to produce a Spark strong enough to jump a gap, of 3/8". Saying the Spark is fine because you see it jumping the tiny Gap on the Plug means Nothing, because as Air Pressure rises, during the...
  14. jimmbo

    14.5x19 prop. Contemplating a change, need advice

    The motor is 9 yrs old already. It is well past Break in time
  15. jimmbo

    Wakeboat bans

    Well, it does mean that there is One less making that Fecal Matter
  16. jimmbo

    97 Merc 200 carb, slow to plane out and no top end

    What were the Compression Numbers? By Good Spark, can it jump a 3/8" Gap on all Cylinders?
  17. jimmbo

    Spark plugs for a Merc outboard

    My 84 Merc inline 6 came with NGKs and when I traded it in 1998, with about 700hrs on it, it still had the Factory Plugs in it. Those Surface Gap Plugs were Great
  18. jimmbo

    Best years for 70-75hp Johnson/Evinrude outboards

    The Motor will survive at 100:1, if the Oil and Gas are well mixed
  19. jimmbo

    14.5x19 prop. Contemplating a change, need advice

    Dropping to a 15 inch will get you closer to the 5750 Have you done a Compression Test on the Engine? Is the Spark strong enough on all Cylinders to jump a 3/8" Gap?
  20. jimmbo

    Wakeboat bans

    I have heard of Hole Saws being used on a couple of Wakeboard Boats at my Lake. There were a lot of Smiling Faces at the Lake when that happened Cordless Tools, a Gift from the Gods.
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