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  1. 9

    1985 Yamaha 9.9SK

    Just picked this up from a fisherman. He trolled for 4 years. Before him it was his cousin's. It sat in storage for well over a year before today. Included in the purchase was the original prop, and 2 new props. Felt bogged down & rich (100 to 1) . But pulled decent numbers...
  2. 9

    On paper how much faster is a 15 HP compared to a 9.9

    Great deal came along, but I'm curious... Is a newer engine able to outperform the older one ?
  3. 9

    78 Evinrude 9.9

    Thanks Crosbyman . I've noticed this setting affects the travel position on the throttle handle. I've set the idle speed adjustment to just before shut off I've set the LEAN / RICH low jet to lean just below shut off .... from that point I added about a quarter turn counter-clockwise .... then...
  4. 9

    On paper how much faster is a 15 HP compared to a 9.9

    15's numbers are getting better Props are the same. Everything is identical. Only diff is the 9.9 is CDI (stronger spark) and the 15 is points and condensers
  5. 9

    On paper how much faster is a 15 HP compared to a 9.9

    Thank you for your replies. I will measure the RPMs of both motors and report back. I feel the 9.9 revs higher by sound alone. If the 9.9 revs higher than the 15 what would be the cause of that ? What causes an engine to not rev as high as it should ? The 9.9 hp has CDI , while the 15 hp has...
  6. 9

    78 Evinrude 9.9

    Excellent post. Well written and explained perfectly. How should the idle speed adjustment knob be set in relation to the low idle mixture ?
  7. 9

    Skinny water boat.

    Its called reading
  8. 9

    Skinny water boat.

    OP only does fresh water lakes. I didn't know shell reefs and oyster shoals lived in fresh water lakes.
  9. 9

    Skinny water boat.

    Any inflatable will outperform most boats in shallow water
  10. 9

    On paper how much faster is a 15 HP compared to a 9.9

  11. 9

    78 Evinrude 9.9

    What is the correct procedure for setting the idle mixture.
  12. 9

    On paper how much faster is a 15 HP compared to a 9.9

    Just picked one up today Doesn't feel much different. 1976 Evinrude 9.9 1976 Evinrude 15 How can I make the 15 faster ?
  13. 9

    78 Evinrude 9.9

    Yes that's exactly it. Thank you HardwaterFisherman
  14. 9

    78 Evinrude 9.9

    Where is the Motor Pivot Tension screw located? Is it to the left, on the outside near the exhaust ?
  15. 9

    68 Johnson 9.5

    This is a 47 second run with a top speed of 37 KMH Using a 9 foot Zodiac soft bottom air floor Fastroller 285 weighing approx 70lbs nothing on board just a 24 liter tank.
  16. 9

    68 Johnson 9.5

    1968 Johnson 9.5: https://streamable.com/899wbv 1976 Johnson 9.9: https://streamable.com/af10ot Night and day
  17. 9

    78 Evinrude 9.9

    That makes sense because the impeller RPM is dependent on the motor RPM. When there's more pressure, there's more water. The stream should get bigger and shoot out further back the more you open her up. Just wanted to thank you OptsyEagle for sharing your experience and knowledge. The...
  18. 9

    78 Evinrude 9.9

    https://streamable.com/bbcus3
  19. 9

    78 Evinrude 9.9

    About 2 hours. Warm to the touch
  20. 9

    78 Evinrude 9.9

    Is it safe to run. I'm currently typing on water. Been running almost full throttle for and hour. She's spraying a lot more from the exhaust hole.
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