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  1. R

    Still, still stuck with no spark

    Never hear of a " stopper switch "---That stops run on.
  2. R

    1986 20HP Mercury outboard

    Tried switching plug wires ?
  3. R

    Clipper circuit assembly

    Service bulletin says to take it off.-----New amplifiers are more robust and able to deal with voltage spikes.-----What is your motor doing / not doing ?
  4. R

    Soak Bearings in Rust Remover?

    I have looked at sintered " metal " under a microscope.---After it had been subjected to immersion in " heavy water " exposed to chemicals / radiation.--Seemed like it was powder at one time and looked like powder again..-----I had huge struggle explaining to engineer and my supervisor as to...
  5. R

    Low compression on Johnson 45hp pull start.

    Every head I have ever taken off a motor has been warped to some degree.----Just the nature of an aluminum casting !!
  6. R

    De-Winterizing my 1974 Evinrude Lark 50 50472M Engine and no Crank

    Does spark jump a gap of 3/8" or more on a test device.----Sparkplugs are not involved with this test.-----Primer bulb MUST go hard.-----If not you have a leak somewhere.----Perhaps a float / float valve issue.----Fuel pump diaphragm ruptured.----Leaks on hose or primer bulb.
  7. R

    knock/grind/rattle at speed 90HP etec please help!

    Drain gear oil and look for metal bits.------And you can run with a timing light ( 1 cylinder at a time ) to see if there is an ignition issue.------Changed fuel filters ?-----New water pump impeller installed.
  8. R

    Low compression on Johnson 45hp pull start.

    Fairly common.----The head is warped so it needs to be resurfaced before you install a new head gasket.-----Go buy a lottery ticket.
  9. R

    Soak Bearings in Rust Remover?

    Steel is porous !!-----It does not look like it to the naked eye but water finds it's way in there !-----Something called -----intergranular corrosion.----Look it up using --google.-----Chance to learn the finer points on material behavior.
  10. R

    Low compression on Johnson 45hp pull start.

    You now have information that you did not want.----Pull the head off now.----Easy to do as indicated earlier.
  11. R

    Soak Bearings in Rust Remover?

    Believe it or not steel is porous.-----Water has a way of getting in there.----Corrosion is under the surface and you can not see it.----I say those bearing will lead to a ---" dynamic halt " ---at some time.----Maybe not in 1 hr but you risk it.
  12. R

    Soak Bearings in Rust Remover?

    Those bearings are ----SCRAP-----Just some proof that some folks know very little about fine machinery and how oil " works " in bearings.
  13. R

    1994 Force 120 Low compression on top cylinder

    Opinions vary on this topic.----I would simply pick up a bad Johnson / Evinrude 115 HP for say $200 or so.----Rebuild that.-----In my wildest dreams I would not spend $5400 on that motor.----Well , maybe $1500 to replace 1 piston with O/S one !!
  14. R

    Soak Bearings in Rust Remover?

    Rusty bearings is not a good thing.------No potions will fix that.
  15. R

    93 e-tec with no spark

    A 1993 is NOT an E-tec motor.
  16. R

    Need to ID this motor so I can order a set of points for it

    Post a few more from further away.-----Or remove flywheel and post picture of the magneto / points, condenser.
  17. R

    Need to ID this motor so I can order a set of points for it

    ???----Np picture here
  18. R

    6hp 4 stroke tohatsu (mercury) won’t reach WOT under load

    He states that it has a new carburetor.----Is this a new " aquasition " and what motor did you have on the boat before this one?----Was the new carburetor added to upgrade power on the motor ?
  19. R

    Evinrude 4hp 2 cylinder 2 stroke cooling question

    Once again we need to state it.------The water pump must be well submerged in a test bucket.----Raise water level by about 12" or so.
  20. R

    Embarrassing question

    Throw that compression tester away and get a good one.----Should read about 120 + PSI on a good motor.
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