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  1. R

    Evinrude 25202r no spark

    Just 4 screws nearest the crankshaft.-----One in each coil and 2 nearest the crankshaft.-----Those need to be loosened about 6 turns or so.----
  2. R

    72 Mercury 500 No Spark

    ??-----Why not take the bypass cover off to do an inspection?----Easy as can be.----Starboard side of the motor.
  3. R

    9.8 hp Tohatsu smokes on startup

    Year ?---Model # ?----A 2 stroke or 4 stroke ?
  4. R

    72 Mercury 500 No Spark

    Hence the reason for the question in post #26.-----Tried to save you time and aggravation.-----No need to remove that water jacket cover.-----You won't see anything you can not see through the sparkplug hole !-----Remove bypass covers on the side.----A much easier task.
  5. R

    Evinrude 25202r no spark

    Correct.-----I have a bunch ( 40 feet ) of the wire core stuff on hand for my projects.------Boat dealer had it in stock.-----This simple magneto was first installed in about 1950 and was installed till about 1990 on some motors.---Used on 1.5 / 3 / 5.5 /7.5 / 10 / 18 / 20 / 25 / 28 / 30 / 35 /...
  6. R

    Evinrude 25202r no spark

    ???-----Your local boat shop will have a roll of proper wire.---An every day simple item.-----Needs to be 7mm with wire core.------That magneto is elegantly simple to repair / maintain / cheap parts too.----Visit -----leroysramblings-----for all you need to know !
  7. R

    72 Mercury 500 No Spark

    ?---What cover where you trying to remove to inspect pistons ?----A bypass cover or the cover around the sparkplugs?------Only by removing bypass covers on the side of the block can you inspect pistons !
  8. R

    72 Mercury 500 No Spark

    The early 3 cylinder used a less than robust gearcase.----Issues with top cylinder dome cracking.----Flimsy cowling.----Designed in a hurry to compete with popular OMC 3 cylinder motors.
  9. R

    72 Mercury 500 No Spark

    I think 1971 was the last 4 cylinder 65 HP.----Those early 3 cylinder motors were never in the top 10 on the hit parade.
  10. R

    Mystery motor

    Take the cowling off.----Post 3 pictures of engine.----Post pictures of prop / lower unit and midsection.-----Your first 3 pictures mean very little !!
  11. R

    Evinrude 25202r no spark

    Contact surfaces on these breaker points form an oxide.----Even new points need to be cleaned , I use 220 grit wet / dry paper.-----It has been this way for 50 + years for me.----So lap the tapers for proper fit and contact.-----Install flywheel with tapers clean and dry.---Torque nut to 45 FT-LBS.
  12. R

    Looking for a tilt trim for 1977 Evinrude 70hp

    Find a 3 cylinder parts motor ( 49 cubic inch ) with trim / tilt.---Say from 79 to 1988.------Install your powerhead and lower unit on that midsection.
  13. R

    OMC Electric Primer Lever & Service Valve Replacement - then Issues

    Did you move the red lever to the manual position?
  14. R

    1996 115 Johnson Ocean Runner V4 Will Not Idle J115SLEDR

    The model # clearly indicates it is 60 degree looper.
  15. R

    72 Mercury 500 No Spark

    Will nor swap over !----Not a chance.
  16. R

    72 Mercury 500 No Spark

    Test with another gauge ?
  17. R

    1996 115 Johnson Ocean Runner V4 Will Not Idle J115SLEDR

    see post #2
  18. R

    1977 Johnson 75 stinger fuel line questions

    Do a compression test.----Post the numbers here.
  19. R

    Stuck water pump impeller

    I bought 3 sets from them ( pinion and forward ) for future gearcase jobs.----I know these gearcases are less than robust !!
  20. R

    1977 Johnson 75 stinger fuel line questions

    I would never replace a factory fuel pump.----A new diaphragm is about all it would need if not working.
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