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  1. R

    What percentage of value of motor do you replace? How much to spend on parts motor?

    Wait a minute-----The part you refer to as a " silly throttle pinion " was used in 1955 and also used in 1985 production.--So factory installed over 30 years or so.------Used on 5.5 hp / 7.5 hp / 10 hp / 18 hp / 25 hp / 28 hp / 33 hp / 40 hp motor.-----There is nothing wrong with this part...
  2. R

    1988 35hp - Multiple issues

    Drill a hole in skeg.----Use Mercury lifting tool in flywheel.---Anchor motor to a post or tree.---Attach chain to the drilled hole.-----Pull the lower unit off with comealong / chainfall / pickup truck.
  3. R

    Leaking 1972 25hp Johnson lower unit oil drain plug

    I believe the helicoil was installed wrong !!-----A new sealing surface would have to match the way the drain screw goes in at an angle.-----Remove helicoil.----Weld it all up.-----Remachine to factory new, is one option.
  4. R

    Where to get replacement spark plug wires for 1976 evinrude 4hp??

    Not hard to find the correct wire at all.-----And you need to put the new wire into the coil before the coil is set in place.----And the coils must be set it the correct place for proper clearance with magnets.
  5. R

    What percentage of value of motor do you replace? How much to spend on parts motor?

    Parts motors may run around $100 and some times are in really good condition.------It all depends or your ability to shop / willingness to learn about these simple motors.----Your location matters too.-----In some areas shops do not work on these motors.-----They then are cast off for those who...
  6. R

    need starter for chrysler 70hp model 707hf availability

    I can not see or hear your motor !!-----Take plugs out.----Crank it over.-----Do you hear the ---" poofff / poofff / poofff ----That would be crankcase compression.----Or remove carburetors and inspect the reed valves.-----All easy to do.
  7. R

    Leaking 1972 25hp Johnson lower unit oil drain plug

    To me it appears that a helicoil was installed.----Done poorly ( crooked ?) perhaps.-----Myself I would replace the housing.----Easy for me to say as housings are easy to find here.
  8. R

    need starter for chrysler 70hp model 707hf availability

    Does spark jump a gap of 3/8" or more ?-----Check flywheel key.---Belt timing ?
  9. R

    1996 90HP Mercury 2-Stroke - Plug Read Help Diag

    No surprise to me on the spark.----Fuel is not burning so plug stays clean !
  10. R

    Force 120 1976 - Was running great, then gradually lost ability to idle. - Need Help Please

    The compression values are an issue.-----Remove cylinder head and have a look.-----It could be a bad head gasket .----Or scored cylinders that will make you cry at an estimate to repair.
  11. R

    1989 88hp set timing on muffs to tdc

    Try another timing light ?
  12. R

    Sharrow prop

    Props / horsepower / boat speed / changing characteristics of water with speed / salt water / fresh water / drag of boat hull / twin vs single engine / 2 or 5 blade props .-----The mystery will never go away.
  13. R

    1995 Evinrude 50 hp

    Post the compression values.----And does spark jump a gap of at least 3/8" on both leads, yes or no?---Was there a lot of dirt in the carburetors ?----Perhaps check for a sheared flywheel key.----Is VRO in service and checked ?----Or mixing at 50:1 in your tank?
  14. R

    Popping and shaking

    It has a starter motor.----I assume it has a stator to charge the battery.----I believe you should install a battery to protect the battery charging bits !----Do not run it without a battery in the circuit.
  15. R

    Popping and shaking

    How does it run when boat is floating in water?-----Use a timing light to look for an ignition miss if there is one .----Perhaps throttle plates open too early.----Have you tried adjusting low speed mixture screw?----Thermostat in place and working properly ?
  16. R

    New issues on engine

    Replace gasket on the water jacket cover.
  17. R

    Sharrow prop

    People are easily fooled.----Just ask folks who invested it --" bitcoin " and other electronic money scams.
  18. R

    1969 25 Hp Johnny Rude/Kicker?

    Thermostat stuck open ??----Best have a look at it and test it.----Very simple.
  19. R

    1994 Johnson 115hp, V4…Tilt Trim question?

    Remove clip.-----Then remove manual release valve.----Check seals on manual release valve.-----Easy step to take.
  20. R

    Recoil pawl evinrude 25 hp

    Pictures of the flywheel ?
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