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  1. jimmbo

    What is this wire for?

    Interesting that they cut the Wire, as a couple of inches away, are the Knife Connectors, inside the Sleeve next to the finger
  2. jimmbo

    2 Stroke Exhaust...

    There is a lot of Unburnt Gas and Oil that comes out in the Exhaust. Run the Motor in a Barrel for a bit and there will be plenty. However, get a Latex or Nitrile Glove and get some of that brown Liquid on it and smell it. As bad as Gas and semi burnt Oil Smell, they smell like Roses compared to...
  3. jimmbo

    Motor has power, won’t turn over

    The Kill switch isn't part of the Starter Circuit, just the Ignition Circuit. Take out the Spark Plugs and see if it cranks and spits water out Other checks, Battery even though a Battery may show enough Voltage, if it can't produce/provide enough Current, the starter isn't going to crank, so...
  4. jimmbo

    115 Evinrude Starflite Ignition question

    Model # would be nice to know
  5. jimmbo

    Help diagnosing a problem

    Reading the Original Post. Engine died, and the Starter didn't crank? Replacing Key Switch didn't fix the problem? What about the Neutral Safety Switch in the Control Box? What condition are the Battery Cables and Connectors? If power is applied to the Solenoid Terminal to activate the...
  6. jimmbo

    1968 Glastron Transom question

    Gelcoat cracking is really a Portal into what the Future will be like for that Boat
  7. jimmbo

    175 2 stroke wont rev past 2k

    A faulty switchbox will certainly kill the engine's ability to make power but if you are consistently getting spark on all Cylinders, it is hard to condemn a Switchbox Inspect the Wires between the Coils and the Plugs, Inspect the Plugs for any Cracks in the Porcelain. Inspect all the...
  8. jimmbo

    Spark plugs for older Merc (80s)?

    If you want to, but there is still fuel in the carbs and Lines.
  9. jimmbo

    Mercruiser 5.7 won’t make power

    A SB 350 isn't going to need 600CFM until it is long past 6000rpm
  10. jimmbo

    Swapping out rollers for bunks

    Boat Ramps are Great Entertainment
  11. jimmbo

    1957 FD-11 pistons

    No, you want to use new rings, not old rings that are worn to a different cylinder
  12. jimmbo

    What brand of 2 stroke oil do you use for your Johnson Evinrude 2 stroke

    Doesn't get me Angry, I know which Oils are better for certain engines, and I have my preferences. Some people have the idea that all Oils are the same except for dye and Label, their minds are made up, and any facts just bore them.
  13. jimmbo

    Mercruiser 5.7 won’t make power

    If the cam change moved the Powerband up higher in the rpm range, the engine is certainly producing less Torque at lower rpms, exactly where the boat needs all the Torque it can get to get it up on plane, the drop in Torque might be part of what is keeping it from getting past 2000 rpm I wonder...
  14. jimmbo

    1968-72 Evinrude 9-1/2 Hp sport twin Questions

  15. jimmbo

    Mercruiser 5.7 won’t make power

    It just suddenly moves several degrees, then returns to where it was? and you are not revving the engine when it is doing that?
  16. jimmbo

    1968-72 Evinrude 9-1/2 Hp sport twin Questions

    That engine had a very restrictive Exhaust and you aren't going to get any more power out of it. The 74 9.9 that replaced it can be hopped up to be the same as the 15 that also came out in 74. FYI, the 9 1/2 was made 1964 through 1973
  17. jimmbo

    Caught another boats anchor, whos fault?

    I've had my mooring lines dragging in the water and they have gotten caught by the prop, and the engine has always stalled, mind you it was only going about 1000 rpm.
  18. jimmbo

    Mercruiser 5.7 won’t make power

    Have you inspected the inside/underside of the Distributor Cap and the Rotor for Carbon Tracks, and or Cracks? Are all the Plug Wires Good?
  19. jimmbo

    Mercruiser 5.7 won’t make power

    I have never used an Advance Light, just a regular Inductive Timing Light aimed at the Harmonic Balancer I too suspect that the Erratic Flashes are the result of a miss, but it couldn't be every 5th, as that would mean every cylinder is misfiring at some point.
  20. jimmbo

    Caught another boats anchor, whos fault?

    Perhaps once his line is repeatedly cut, he might clue in. It could have been interesting if an older outboard with a Bullet shaped Gearcase had happened along and snared the Rope. I know the rope would have been cut, or engine stalled, but I wonder how many feet old Frog Mouth's Boat would have...
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