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  1. jimmbo

    Pontoon Repower

    FICHT was released for the 1997 Model Year, by both Evinrude and Johnson.
  2. jimmbo

    Transom bolt pattern for older (1983) 50HP 4 cyl Mercury with power tilt and trim

    Old? That's an 84 or 85, I consider them Almost New.
  3. jimmbo

    Brake based limited slip differentials

    Brake based Limited Slip Differentials are also known as Traction Control. I will take a LSD over Traction Control any day, though if it took enough of the other LSD I might find Traction Control entertaining... though years from now, a Flashback would be scary
  4. jimmbo

    35hp merc. Carb spring hookup?

    The Parts Diagram don't show any Anchoring Screw/Post for the Loop. Perhaps it was retained by #42? That Screen is not visible in the Pic you provided
  5. jimmbo

    Rebuilt my mercarb, now runs awfully

    The TKS does something to Enrich the Mixture, to speed up a Cold Start. Did that get messed up? https://forums.iboats.com/threads/how-does-tks-work-technically.611153/
  6. jimmbo

    Towing friends boat damage

    It still comes down to the Driver doing the Towing to make sure the Coupling is serviceable and secure before Driving away, as all Liability will rest on him/her
  7. jimmbo

    One last try

    That would be a Saucer. Quite common in the 60s
  8. jimmbo

    1978 Johnson 140hp running rough. Need advice

    Premium Gas has a lower BTU Value per Volume than Regular Gas, plus, it burns slower. Unless the Engine is requires Premium, you can end up less Power and poorer Gas Mileage, plus Higher Operating Costs
  9. jimmbo

    How can I make my Tracker 40 HP faster?

    That is why a lot of us Ask if the Spark will jump a 3/8" or 7/16" Gap. Air is an Insulator, and the Denser it is, the better of an Insulator it is, and the Voltage required to Jump the Gap increases.
  10. jimmbo

    changing from a 2 barrel to a 4 barrel carburetor

    A 22 ft is a lot of Boat for a 4.3. Myself I wouldn't use anything smaller the Big Block in a boat that Size. That said... Tops out at 4200 Rpm. What is the WOT range for your Engine, I mean the WOT range that was Specified for it in 1989? A 4.3 is not going to need a lot of CFMs. At 4200 rpms...
  11. jimmbo

    1994 mariner 115, oil injection

    What is the Rpm at WOT?
  12. jimmbo

    How do I get that last inch?

    The Winch Strap, even though it is Twisted is Exiting at a good Angle, mainly because it is unwinding from the Bottom of the Winch Reel. However that is not how the Previous Photo had it. There it appeared to be unwinding from the Top. From this Angle, the Boat appears to be against the Bow...
  13. jimmbo

    How do I get that last inch?

    When I took delivery of my Boat the Trailer was set up this way, it was to be reconfigured The way I had them adjust it. Move the Boat, and Bunks forward which required the Axle to be relocated too. Had Supports for the Front of the Bunks added. Had them swap the Trailer Tongue end for end...
  14. jimmbo

    1994 mariner 115, oil injection

    I've seen a few on the V6s, likely because the Gear is not continuous, and had a Split that has to be lined up, and secured, but not on the inline Loopers. Using Nylon for the Drive Gear was probably done to reduce Noise
  15. jimmbo

    How do I get that last inch?

    Don't back in so Deep.
  16. jimmbo

    1994 mariner 115, oil injection

    The Engineers that designed the Oil Premixing System did a Good Job on it. The Pump Gears are just above the Lower Crank Bearing so they are always well Lubricated, even if the Lower Bearing Seal leaks a bit.
  17. jimmbo

    How do I get that last inch?

    I had a dealer rig a Trailer up like that, where the Strap was aimed down and under the Bow Stop. The Trailer I had, did have a lot of Adjustability, I was able to change the Angle of the Stand so the Winch Cable came off the Drum and was lined up with the Bow Eye, and was Parallel to the...
  18. jimmbo

    How do I get that last inch?

    P*ss Poor Winch Stand design. Geometry all wrong
  19. jimmbo

    1994 mariner 115, oil injection

    I think that Gear is on the Crankshaft... Edit: Racer beat me to that
  20. jimmbo

    Engine, Carb or Prop? need suggestions or ideas please.

    I have a 5.7 in my 18 1/2 footer(in my Avatar). It is adequate, but for any boat bigger, I would be getting more displacement. You can get more hp out of a Small Block, Cam changes, but that mores the Torque Curve into Higher Rpm ranges, and kills the Low End Torque where you need it, especially...
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