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  1. jimmbo

    96 evinrude 20 hp runs rough mid range

    That Motor does not Need a Battery to Run. When you rebuilt the Carb, did you make sure to check and adjust, if Necessary, the Sync between the Carb and Ignition Advance? Again to the Carb, When you "Cleaned it", did that include removing the Disc Plugs and cleaning the Areas behind them? Did...
  2. jimmbo

    Customer advice

    Why 0.030" over? There are 0.010", and 0.020" Pistons as well. Being that it got hot, checking the Head for Warpage is another thing needed
  3. jimmbo

    89 Mercury Classic 50 won’t open up

    It would have been nice to know about that little Tidbit...
  4. jimmbo

    Math problem

    I was, and will always be Proud, to Smoke up an Area with the Beautiful Aroma of Burnt TCW....
  5. jimmbo

    Changing props. What one to get?

    I doubt you will lose much, if any Speed. Though the Pitch is less the Rpms go up, and since you are at the Bottom of the Rpm Range, the Motor will be making more HP as Revs increase. In the 50 yrs I have been swapping Props, I found that within a Given Prop Line, there isn't too much...
  6. jimmbo

    89 Mercury Classic 50 won’t open up

    These engines keep the Throttle mostly closed until after the Timing is Fully Advanced. The Pick Up timing is where the Plates are permitted to crack open a tiny bit, then more Throttle Lever movement advances the Timing further with the Carks open a wee bit along the way till it hits Max...
  7. jimmbo

    Why I'm nervous boating at night...

    40 or so Yrs ago I used to take my boat out at my Dads Lake, roar around at 50mph, on Nights with a Full or almost Full Moon. My Dads Girlfriend commented that it really looked like I was going faster than that. She also asked how I was able find my way back to the lot. I told her, that I just...
  8. jimmbo

    Why I'm nervous boating at night...

    Once I had my Cataract Surgery, Night Driving was much Easier I even got a Lens that corrected my Astigmatism, though I had to pay Out of Pocket, for that, as it wasn't covered by Healthcare. The Regular Lens was No Charge. I did get reimbursed by my Insurance for the Special Lens, though they...
  9. jimmbo

    89 Mercury Classic 50 won’t open up

    There is No Idle Timing spec on your Motor. Idle speed is set by changing the Timing, which will vary upon the Load the Motor has on it. When you adjust the Idle Speed, you will also have to adjust the Length of the Throttle Cable Do you have the Factory Service Manual for that Motor? I suggest...
  10. jimmbo

    89 Mercury Classic 50 won’t open up

    A 15" sounds a bit on the Hi Side, an 11 would be closer to what you would need on that boat
  11. jimmbo

    89 Mercury Classic 50 won’t open up

    Okay, so you(and previous Owner) were messing with the Sync between Spark Advance and Carbs. Have you verified that the Spark is Advancing as per Spec, and that the Pick Up Timing is Correct? Racers' Comment about the Prop is Valid. What kind of Boat is the Motor on, and what is the current...
  12. jimmbo

    Math problem

    That was the Cowl Decal for a 76
  13. jimmbo

    89 Mercury Classic 50 won’t open up

    Did it run fine, then suddenly stop running Fine? What "Tinkering" have you done to the Engine? How long have you had this Motor?
  14. jimmbo

    Math problem

    I love Smoky TCW3 Exhaust, smells Sweet, and Keeps the Skeeters away
  15. jimmbo

    Major engine malfunction today and could use advice on next steps

    First I would pull the Raw Water Pump off and Check the Impeller. If any Blades are Damaged, Also Inspect the Pump Housing, the Thermostat and Housing, also the Exhaust Manifolds for any Restriction. I suspect the Impeller is more than 5 yrs old and should be replaced anyway You said there was...
  16. jimmbo

    Wont go into forward

    Welcome to iboats You didn't get the Throttle and Shift Cable mixed up? I won't hold your being an Auto Mechanic against you, but a lot of things you think as Normal, are not the same on 2 stroke Outboards, especially when it comes to Ignition Timing, and setting Idle Speed
  17. jimmbo

    How many of us have a GREEN Seahorse motor ?

    Over the past 55 yrs, I have seen lots of the Green Ones
  18. jimmbo

    1995 Johnson 112 SPL

    Examine all the Wires and Connectors between the Stator, and the Coils
  19. jimmbo

    97 150 Looper Fuel Spit-Back

    Is it Actually Spitting, or just dribbling out the Throat? If you really Want to "Eliminate Possibilities" just replace the Engine with a brand New One
  20. jimmbo

    Tow Smart "Submersible" LED tail lights are junk... better solution?

    Best thing, is always Unplug the Lights from the Tow Vehicle, Regardless of where or not they are supposedly Sealed. A lot of the Wiring between the Lights and the Plug is not Sealed, is not longer Sealed. Water(with the Exception of Distilled) and Electricity are indeed too Friendly and need to...
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