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  1. 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
  2. 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...
  3. 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...
  4. 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
  5. jimmbo

    Extreme ventilation issues?

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

    Extreme ventilation issues?

    The first sentence: "...2001 Mercury XR6 150hp, 20" long shaft on a 25" transom..." Pretty much sums it up You might get away with it at the Top End, if you use Props that are designed to run half out of the water, but they really only work well at High Speeds, and will still slip a lot when...
  7. jimmbo

    Will a 1976 85 hp head fit my 1969 85 hp?

    No, the Part #s change several Times through the Years Pre 79s were 92.6 in. Displacement, Post 78s were 99.6 in. Displacement. Early Blocks will not bolt on to the Later Mid Sections. The Part #s are different for the 76 compared with the 69s. They will likely Bolt-on, but there might be...
  8. jimmbo

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    The 84 V6s still had the Single Ram TnT. In 84, only the Inline 6s and the 66.6 in 4 got the New Trim System
  9. jimmbo

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    Reading the Post, I couldn't tell if you meant ...I've run the V6 since 1976... or ...I've run that V6 since 1976... I thought 84 was the 1st Year for the Mixing System on the V6
  10. jimmbo

    88 merc 60 (2 carb, 3 cylinder)

    Check all connections in the Ignition System for Tightness, and Corrosion. Spark needs to be Consistent, at 3/8" You might have Dirt/Gum/Varnish in the Fuel Circuits in the Carb(s). While you replaced the Tank and Hose, the Hoses, between the Connector and the Carbs, might have Problems...
  11. jimmbo

    Intro and question

    What kind of Fuel does the Lower Unit use?
  12. jimmbo

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    1976? Merc didn't put the Premixing System on until the Mid 80s...
  13. jimmbo

    Barefoot skiers?

    I too learned behind a 14 ft with a 40. I remember cracking the whip behind our 90, boat was going 33-35, with 75 ft of rope, I was probably going over 50, and wiped out. I skipped on the Water, like a Stone, several times before the water was soft enough to yield
  14. jimmbo

    Barefoot skiers?

    The Boom will make it easier, as it offers Solid Water for the Feet, unlike the Frothy Water behind the Boat. As for your Anticipated Joy, at Barefoot Speeds, the Water doesn't feel much softer than Concrete upon a Wipeout. Any bit of Floating Debris, such as a Branch, can really mess up the...
  15. jimmbo

    Sharrow propellers

    That Infomercial? I saw that Promotion a couple of Years ago. It reminded me of "Amazing Discoveries" and had me ROTFLMAO!!!
  16. jimmbo

    Water intake location? MC 185 w/AlphaOne

    On the Lower Unit of the Outdrive, between the Propshaft Line and the Anti-Ventilation Plate
  17. jimmbo

    Sharrow propellers

    That Imaginary Prop, with Imaginary Performance, from Imaginary Tests, from Questionable Sources, has been appearing off and on for the past couple of Yrs.
  18. jimmbo

    1986 merc 40hp 4cyl

    That Motor has been around since the late 50s. For many Years it was known as the 50hp. In the mid 80s, Mercury Prop Rated the Engine, as a 45hp, then a 40hp. Get a Factory Service Manual for that Engine as it will have the Info you will need to rebuild and readjust the Linkages after...
  19. jimmbo

    1993 Evinrude 70hp Missing Prop, Seeking Recommendations

    There is an Easy way to get the Weight. Weigh the Boat and Trailer, unhooked from the Tow Vehicle(get it off the Scale), then go launch the Boat, return with the Empty Trailer and do the Solo Weight thing again for the Trailer. Even 1200lbs for an 15-16 ft Hull seems a bit high BTW, water is...
  20. jimmbo

    Choke stays closed

    Maybe because the Chart shows it is supposed to be on #7. However, Now you say the Choke works on #7, earlier you said it is always on when on #7. Maybe Power is being applied to the Circuit other than by the Choke Switch. Since you say it happens with 2 different Control Boxes, start looking...
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