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  1. R

    1990 Force outboard lower drive issue question

    Remove sparkplugs.----Rig up a way to measure torque to turn flywheel.-----Record results.-----Remove lower unit and repeat the test.
  2. R

    Engine model number

    Sorry----This may be a motor assemble from many sources.----I can offer no further help on it.
  3. R

    1972 Johnson 25hp tiller

    Is the felt wiper too tight ----Remove the breaker cam and test again.
  4. R

    1972 Johnson 25hp tiller

    Did you have the armature plate off?----Have never experienced that over many years / motors !----Side note.---Those U-shaped clips are not installed correctly on breaker points.
  5. R

    1972 Johnson 25hp tiller

    Perhaps one of the coils is rubbing on the flywheel.---Remember we can not see your motor.
  6. R

    Engine model number

    A 1988 to 94 model.
  7. R

    RD-25D 40 HP reconditioning

    Don't spend any $$$ until you have determined the actual condition of the motor.
  8. R

    1977 Evinrude 15hp pull start

    With the right tools the flywheel is off in minutes.-----You have to do it or pay $100 / hr for a shop to help you.
  9. R

    1990 Force outboard lower drive issue question

    If a motor is in good condition it idles SMOOTH.----When put in gear it will drop about 150 / 200 RPM and idle smooth all day long.----If it stalls a lot something is wrong.----Simple trouble shooting will find the issues.
  10. R

    Skinny water day.

    I can see the vet bills $$$$ if boat came to a sudden stop.
  11. R

    Some Play In Lower End Propeller Shaft Mercruiser A1G1 140hp

    How does it feel when you pull UP on the shaft ?
  12. R

    1990 Force outboard lower drive issue question

    Proper tooth contact is determined with Prussian blue / experience / time / effort.-----Very important for long gear life.
  13. R

    Engine model number

    Post some ( 5 or 6 ) of the powerhead.----The 100 HP version was marketed in 79 / 80.-----Then again from 88 to 94.----And it could be that the later midsection was put on an older motor.----Or an older lower unit put on a newer motor.-----This is what happens with numerous owners !
  14. R

    1977 Evinrude 15hp pull start

    It holds ignition components and rotates to advance the timing.
  15. R

    Black scuff marks on cylinder walls

    At one time the factory gasket was wire re-enforced.----Much more durable than the paper thin " looks the same " item.
  16. R

    Black scuff marks on cylinder walls

    Post #40 indicates to use a factory gasket?----So that was ignored ?
  17. R

    17 vs 19 vs 21 Pitch?

    I often talk to folks about generating electricity.----You can buy a generator with 5 HP.----Yet where I worked there are generators as well.-------The most common guess ( 9 of 10 ) for most was 10,000 HP.----Yet the true number is 1,000,000 HP.-----So when an electric car uses 20 HP at highway...
  18. R

    1990 Force outboard lower drive issue question

    Gears must be precisely positioned / fitted using shims.-----Failing to do so and checking with bluing could lead to a " dynamic halt " of the gearcase.
  19. R

    1990 Force outboard lower drive issue question

    Google it !----Fitting gears using prussian blue paint----Have at it.
  20. R

    1994 evinrude 140hp v4 cutting out at wot

    That is a looper as per post #2
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