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  1. jimmbo

    Acceleration problems

    Maybe, you have the Parts Motor, and we don't. Just out of curiosity, what Manual are you using?
  2. jimmbo

    Testing thermostat with torch

    I don't know where you learned Electrical Theory, but yes
  3. jimmbo

    Testing thermostat with torch

    Since the Pump is missing a lot of Material, who knows where the stuff is residing. As for the Temp Sensor, that head must have got quite hot for it to pop out like that, or someone took it out and didn't reinstall it properly, as it does look cross theaded. Remove it and examine the Threads, of...
  4. jimmbo

    17 vs 19 vs 21 Pitch?

    Any difference in Top Speed, will be low, far less than 5 mph. Any Idea what Make and Series the current Prop is and how old is it, and is it cupped?
  5. jimmbo

    Testing thermostat with torch

    You will likely have to pull the Powerhead off the Exhaust Housing as that is likely where any pieces of the Impeller have gummed things up. O-rings should be considered expendable. However some have reused them, claiming they worked fine, but YMMV...
  6. jimmbo

    Testing thermostat with torch

    Blockage, or Waterpump, not working properly. Time to get the Tools out...
  7. jimmbo

    Testing thermostat with torch

    If you replace it, do test the new One is some Hot water....
  8. jimmbo

    Testing thermostat with torch

    It should be fully open by 145F
  9. jimmbo

    Estate sale lot of 18 - 25hp motors - Compression gauge variables.

    195psi.... ROTFLMAO:ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO:
  10. jimmbo

    Mercury BlackMax 175Hp, difficult staring, and then bogging down.

    Merc got the Extra Displacement by removing the Iron Sleeves from the 2 liter Block, and chroming the Bores. Pre 82, that displacement was for the 200 and 225, then in 82 when Merc started Prop Rating their bigger Outboards, the 2.4 black was used for the 175 and 200. Removal of the Iron...
  11. jimmbo

    Mercury BlackMax 175Hp, difficult staring, and then bogging down.

    On the 3rd you reported "I did a compression test and got readings 110, 125, 120, 115, 120, 125 which is average for a 2 stroke" 5 days later... " Recently it overheated again and this time scored one of the bores, see the attached image. I yet to do another compression test after this happen."...
  12. jimmbo

    I've got a 1971 Mercury 110 9.8hp outboard with a stuck tiller handle

    So you removed the Tiller Handle, and it is Frozen, or is the Part still part of the Engine still Frozen? As for the "other one on..." Is that a Complete Motor, or just the Tiller Handle?
  13. jimmbo

    Timing is retarded ;-)

    Why?
  14. jimmbo

    Timing is retarded ;-)

    You would have to speak to the Manufacturer/Engineers, as they are the Ones who had their Reason(s) to change the Number.
  15. jimmbo

    Timing is retarded ;-)

    Latest Parts Lists usually show the updates
  16. jimmbo

    Timing is retarded ;-)

    That # has been discontinued and superseded to 77-8M6008208
  17. jimmbo

    Timing is retarded ;-)

    I have no Problem using a GM labeled part, provided it is the Correct Part. I have seen many 3rd Party Parts that while the part was a GM Part, and it looked Identical, it wasn't the Correct Part. Years ago it was the same when it came to Carbs and Distributors, some people's Attitude, "it looks...
  18. jimmbo

    Timing is retarded ;-)

    Was it a Genuine Mercury Part, or a 3rd Party(including GM) Part?
  19. jimmbo

    1989 Mercury 200 Black Max

    Have you checked the wiring for shorts to Ground? Have you unhooked the Sensors/Sending units to see of it quits?
  20. jimmbo

    Estate sale lot of 18 - 25hp motors - Compression gauge variables.

    Early 80 Saws, to me are practically Brand New. When you said Old, I figured you meant something pre 1950
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