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  1. jimmbo

    V4TL-13A Compression Validation

    a 1966 used J4-J, but in 67 when the Engine acquired Electronic Ignition, the plug changed to the Surface Gap type
  2. jimmbo

    Spun Prop

    If the Pin is the correct one. it is not likely to shear, as it would be Stainless Steel. The Props will have a Rubber hub to absorb the Shock of shifting Is the engine running on both Cylinders, at higher Revs?
  3. jimmbo

    What mix

    How to mix it being not well understood, is certain
  4. jimmbo

    V4TL-13A Compression Validation

    Does that Sierra Oil say it can be used in Electric Shift Lower Units?
  5. jimmbo

    V4TL-13A Compression Validation

    Saw one of them about 10 yrs ago
  6. jimmbo

    V4TL-13A Compression Validation

    WOT Rpm range 4500-5500 Mix fuel @50:1, use TCW-3 Requires BRP Premium Blend Oil for the Gearcase. This was originally called 'Type C' Gear Oil. There are some 3rd Party Brands, but not all are compatible with the 'Electric Shift' so beware. The rings might be a little Sticky, so a can or two...
  7. jimmbo

    how to break in a rebuilt 60 hp Merc 2 stroke ?

    It was never Oil Injected, just an Oil Mixing system that added Oil to the Fuel before it got to the Carbs. This system was pretty good.
  8. jimmbo

    how to break in a rebuilt 60 hp Merc 2 stroke ?

    Yours has the Tank where you add the Oil, under the Cowl?
  9. jimmbo

    Compression Test without a battery?

    A large and powerful, non-Hammer Drill could be used. However Newton's 3rd Law would likely have the Operator going in Circles around the Engine
  10. jimmbo

    how to break in a rebuilt 60 hp Merc 2 stroke ?

    While the Mixing System on the V6s and later 3 and 4 cylinder Loopers is okay, the 'Autoblend' System brought out for the Older Inline Engines, should be removed from the Fuel Line, thrown as far possible from the Boat, preferably into a Fire Pit.
  11. jimmbo

    Compression Test without a battery?

    NOT a GOOD Idea, as that will lead to an Over Torqued Flywheel Nut, and possible Damage the Crank and Flywheel
  12. jimmbo

    how to break in a rebuilt 60 hp Merc 2 stroke ?

    Mercury considers the first 10 hours as the Break-in Period. With older(pre Oil Mixing System) 24:1 was specified for the Break-in. Engines with Premixing Systems, 50:1 in the tank was specified for that period, just to Insure the Engine had some oil, if the PreMixing System wasn't working...
  13. jimmbo

    Compression Test without a battery?

    The 115, consists of 6 relatively small Pistons, and once all the Sparkplugs are removed, it isn't too hard to turn over. I used to rope start my 84 115, as I was was too cheap to buy a new Battery. On a cold engine, it usually took 2 attempts for it to catch and run.
  14. jimmbo

    Fuel problem

    The primer bulb should be hard, only with the Engine stopped and the Carbs filled, once the engine is running, the inlet valve in the carb will open and the Line between the Bulb and the Fuel Pump is no longer under pressure, and the bulb will be soft. If there is a restriction in the Fuel line...
  15. jimmbo

    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    More like "Increased Margins"
  16. jimmbo

    Running 5.7 without choke on quadrajet?

    In over 45 yrs, I have never had a Problem with an Automatic Choke.
  17. jimmbo

    Running 5.7 without choke on quadrajet?

    Gee, that's kind how my engine starts, without having to do any pumping of the Throttle, just move it enough, to set the Choke and Fast Idle Cam. After 20 seconds, reduce idle speed, and you are goods to go. Just stay below 2000 till the Engine Temp comes up.
  18. jimmbo

    1985 evinrude 30 hp prop power issue

    You are referring to the Retainer that goes here? These are pretty much the easiest to do a Link and Sync on
  19. jimmbo

    84 Evinrude bogging full throttle surge

    Start with a Compression Test As for timing, there is no Spec for Timing at Idle speeds. Only Specs for maximum Advance, and another Spec for when the Carb just starts to open the slightest bit. Have you verified that the Spark is not dropping out on one Cylinder as the Throttle is increased? Is...
  20. jimmbo

    Quit on the Water!

    Feeler Gauge and Screwdriver fit in the Port with lots of room to spare. A Matchbook was close to 0.020" and the Striker Strip could be used for Dressing/Cleaning the Points.
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