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  1. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Just trying to explain it in words even you can understand. Should I make it simpler?
  2. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Any snowmobile built into the 90s. Any dirtbikes built into the 90s. Any chainsaw built today. How are a piston reed or case reed any less reliable than a piston port?
  3. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    No I am not, because if it didnt do anything why make a round and square one. Just because you dont understand it doesn't not make it tuned.
  4. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    The 15 hp Evinrude from around 1984 up has a tuned exhaust and later 9.9s also.
  5. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Piston ports which is what most dirt bikes are, is a terrible design, No amount of exhaust tuning can fix the Holes they have in their powerband. The reed valve design is significantly better. You also have to look at the ports timing which is different than outboards.
  6. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    How does a crossflow not have a tuned exhaust? I dont think you know the difference between a looper and a crossflow.
  7. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Lower compression engines tend to idle smother Decompression holes make the idle smoother.
  8. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    You mean like 150 hp crossflow OMCs that routinely have 90 psi and no decompression holes?
  9. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Why can a Are they the same? You literally answered your own question with your manual. You said your manual only covered 60hp and up. Yet you expect that # to transfer a smaller engine? Why doesn't Mercury just say all 2 strks? Why do manufacturers put decompression holes in engines? Does the...
  10. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    The smaller engines 6-9.9 The 9.9 is fine at 90 psi
  11. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Pretty sure its a crossflow.
  12. flyingscott

    1996 mercury 9.9 outboard, stalls when decelerating

    Are you positive your looper 2 strk compression is appropriate for a crossflow?
  13. flyingscott

    Yamaha 50hp rebuild ?

    Get tongue depressors or big popsicle sticks. Manually press the rings in 1 at a time. The Bevel will only work if the rings are perfectly That's why you need the popsicle sticks.
  14. flyingscott

    TRIM/TILT ELECTRICAL CONVERSION

    3-4 volts is normal.
  15. flyingscott

    BRP outboard old but funny

    The original post was about the Underboard only.
  16. flyingscott

    2003 Johnson J70PL4STC 70 hp Outboard no start

    Hard to believe you did not blow any fuses.
  17. flyingscott

    Johnson TN-27 float question

    Put the Mercury float flatside down. Use a stainless E clip to hold it on the needle.
  18. flyingscott

    Your Best Technique for Rope Starting Merc 20hp EFI

    Yeah you find them once in a while.
  19. flyingscott

    Your Best Technique for Rope Starting Merc 20hp EFI

    If it doesn't start in 3 pulls take it back to the dealer, something is wrong.
  20. flyingscott

    1994 Evinrude 50 HP Not Charging

    That actually has a regulator rectifier on it.
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