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  1. flyingscott

    How many turns out do you set the low idle jet from lightly seated

    That may not be wrong. It seems like the plastic carbs do require more turns out to run.
  2. flyingscott

    Which carbs supply which cylinders?

    Those motors were powerhead rated at a time when every other motor was prop rated. Did you know the 125 force was 107 at the prop.
  3. flyingscott

    1976 Johnson 70hp won't shift into forward

    Are you doing this while it is running?
  4. flyingscott

    Which carbs supply which cylinders?

    Not sure about the redesign but anyways. That motor was never 150 hp on its best day. MAYBE 130 at the prop but any modern 150 would smoke it.
  5. flyingscott

    Which carbs supply which cylinders?

    I though that was a 125 block with an extra cylinder on the bottom.
  6. flyingscott

    Which carbs supply which cylinders?

    Top carb supplies the top 2, 1&2 Middle carb supplies the next 2 3&4 Bottom carb supplies the bottom One #5
  7. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    How much are you paying for these? If your block is good you can fix it for less than $400
  8. flyingscott

    no spark, still smoke a bit? merc '90 115hp o/b

    Check the lanyard switch.
  9. flyingscott

    2003 25 2 Stroke Carb Kit

    1395-9761 1 Shouldn't be hard to find
  10. flyingscott

    2008 Yamaha 90HP will not go into move foward in water

    Has the water pump been changed or lower unit serviced?
  11. flyingscott

    Coolant outlet

    What motor do you have?
  12. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    LIke I said make sure the block accepts your ignition.
  13. flyingscott

    Water issues

    Check your thermostat.
  14. flyingscott

    1998 DT225 RPM issues

    Compression and spark test must be done. Sounds like you are not running on all six cylinders. Neutral revving means nothing!
  15. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    On a chrome bore block, a lot of the time what you are seeing as scoring is actually aluminum transfer from the piston. That is why you take it apart and clean it with muriatic acid. Muriatic acid will eat the aluminum away and could leave you with a perfectly fine bore. Muriatic acid does not...
  16. flyingscott

    Mercury 9.9 2 Stroke Coil Question

    I think the centers come out of those coils. So you would have to swap yours into that one.
  17. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    If you can't be bothered to read the whole thing then stay on the sidelines.
  18. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    Look for carbon plugging in the exhaust. The earlier model blocks may not have the Bung for staking the stator in place you will need to look at that. Stay away from the non thermostat models. I personally would start with tearing yours down first before anything.
  19. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    Did you read the part about the scoring in the piston? Will your magic decarb fix that.
  20. flyingscott

    1994 Mercury 25 - Low Compression Bottom Cylinder

    Forget about trying to get the compression up the motor needs to come apart. After it is apart take Muriatic acid and clean the bore to see if the chrome is flaking off.
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