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  1. jimmbo

    Evinrude big twin 40

  2. jimmbo

    Rope Stuck on Evinrude 6HP outboard

    Someone was in there, scraping Carbon off the Pistons. Dropping the Gear Case might reveal if it, or the Powerhead is the Problem. Odds of both being Seized are low.
  3. jimmbo

    Best Practices For Throttle and Trim management to not blow a motor

    The 3 cylinder 75hp is weaker in Holeshot than the 3 cylinder 70hp of the same displacement. That is due to the Port Timing to get the extra 5 hp.WOT range for it is 5200-5800, but that engine will run better and last longer if it propped to run as Close to 5800 as possible
  4. jimmbo

    Tire grew in size?

    I think you better start over. You stated the tires were St 215/75/13, yet the pics say St 215/75/14, which you later admit, in the Mean time you are saying one is a Spare... Both tires in the Pic are Trailer Tires Like I said, start over.
  5. jimmbo

    Vapor lock or something else?

    Back in the Days of Carburetors, and Fuel Pumps on the Engines the pulled Fuel from the Tanks, Vapour Lock was common on hot Days(Gets a lot Hotter under the Hood of a Car, compared to the Bilge/Engine Compartment of a boat) I would carry a bottle of Water that I would Pour on the Fuel Pump, and...
  6. jimmbo

    Vapor lock or something else?

    If it were going to Vapour Lock in a FI system, it would be between the Tank and the Lift Pump especially if there is a Filter in between, as that would be the only location that would have lower than Atmospheric Pressure. Downstream of that Pump the Fuel would be under Higher Pressure and far...
  7. jimmbo

    2004 Glastron 4.3 D Vortec Intake Manifold Upgrade

    Doubt you would see any difference, except possibly, increased Corrosion/Erosion in the Coolant Passages
  8. jimmbo

    Evinrude big twin 40

    As Mentioned about the Gear Lube, but beware that some 3rd Party Oils claim to be Type C, but then go on to say they are NOT Compatible with Electric Shifts
  9. jimmbo

    Evinrude big twin 40

    The Washers on the Screws should be replaced every time the Screws are removed/loosened.
  10. jimmbo

    Evinrude big twin 40

    Welcome to iboats Likely the Seal under the Water Pump. Have you tried pulling a Vacuum on the Case? Looking at the Pic, the Boat looks like it is nice Condition FYI, Your motor was called 'LARK'. 'Big Twin' would have been used for the Mechanical Shift models
  11. jimmbo

    Confusion in Evinrude ID for E75TLCRD

    Welcome to iboats When I looked up the Model #, I couldn't find any Tiller in the Parts Lists. Showed Remote Controls https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1984&hp=75&model=E75TLCRD
  12. jimmbo

    I Got Me a Mercury !!!

    The 69 Graphics on the Cowl look much better than the 72...
  13. jimmbo

    KF7 Mercury Super 10 Lighting

    Welcome to iboats Try this Link https://www.marineengine.com/parts/mercury-mark-outboard-parts/ke7-kf7-kg4-kg7-1939-thru-1953
  14. jimmbo

    115 Etec gearcase assembly

    OEM gears would need to shimmed to mesh properly
  15. jimmbo

    115 Etec gearcase assembly

    Perhaps the Gear(s)/Bearings on the Prop Shaft also need the Shims Adjusted Do you have the Factory Service Manual? If not, get it.
  16. jimmbo

    First Successful Outing On The Lake

    As mentioned, do NOT use Starting Fluid on a 2 Stroke(I know I'm gonna hear: "I use it and No Problems"; or "a little won't hurt" until it does.) but it is your motor and money... How long have you owned this Motor? Water Pump Impeller should be replaced Start with the Basics 1) what are the...
  17. jimmbo

    1989 Johnson 30hp Question

    Welcome to iboats Perhaps the noise is from the Transom Bracket, there are Reverse and Tilt Lock Mechanism that create noises. Can happen when the Motor has been used in the Shallow Water Mode.
  18. jimmbo

    Lengthening a boat trailer

    As you add Material to the Trailer, you are reducing its Load Capacity, by an equal Amount
  19. jimmbo

    Merc not going in neutral but starts

    Both the Throttle Cable and the Shift Cable can be adjusted for Length. What gear is the Motor in? Forward, Reverse? If in Forward, can it get Reverse? Could also be a Problem in the Control Box
  20. jimmbo

    What is this?

    They were called OMC Sea Drive. The Bracket provided Trim and Tilt. The Unit in the Pic is a Crossflow, but as Racer says there were a couple of models. The Crossflow, as an Outboard in the 1980s, was offered as 85, 88, 90, 100, 110, 112, 115, and 140hp versions, so while it may a lot like your...
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