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  1. R

    78 Johnson 115 starboard cylinder head getting hot

    The water from the telltale does not go through the block.------look for / replace diverters.---or blown head gasket.------Head must come off.
  2. R

    How to disconnect temperature sensor?

    Simple is good on a boat motor.
  3. R

    How to disconnect temperature sensor?

    That style connecter was still used in the late 1980's
  4. R

    1987 50hp Evinrude E50TLCUD Thermostat Replacement

    Thermal expansion of pistons jams / locks up / stops the motor.
  5. R

    1987 50hp Evinrude E50TLCUD Thermostat Replacement

    There is no limp mode on this motor.----There is no computer on this motor.
  6. R

    Evinrude 7.5hp kill switch issue

    Evinrude motor
  7. R

    i have an 8hp evinrude thats locked up due to sitting 10+ years

    Motor must come apart !
  8. R

    Idle on an 1965 Evinrude 18hp

    These 22 cube motors like yours are some of the best they made over many years.----In good condition they idle very well.----So nice that you don't want to stop it.
  9. R

    Yamaha 115 anodes

    Replace them , Yamaha did have corrosion issues.
  10. R

    Compression

    in my opinion they are too low.---Should be 140 or more.
  11. R

    Compression

    Time for a new 4 stroke?
  12. R

    Idle on an 1965 Evinrude 18hp

    Sounds like classic ---lean sneeze--- on this motor.---open low speed mixture screw 1/8th turn at a time and test.----or throttle plate is not closed /opening too soon at idle.----And post the compression values on this motor.
  13. R

    Compression

    you have a bad gauge, loose head bolts or a motor that needs a rebuild..
  14. R

    back grind clutch dog on 74 15hp Johnson 15r74g

    Also make sure that lower rod is fully screwed in
  15. R

    back grind clutch dog on 74 15hp Johnson 15r74g

    Detent spring on the propshaft has nothing to do with holding it in gear.---Check that both shift rod notches are l lined up with holes in the connecter,-------Adjust shift at the side of the block for equal engagement of forward and reverse.
  16. R

    What should the piston psi be on late 70s 2hp outboards?

    Motor needs 4 things to run properly.---Good spark at the correct time.-----Correct amount of fuel. -----Compression in the cylinder,---Compression in the crankcase.----So does spark jump gap of 1/4 inch ?-----is spark between the 2 timing marks?----Do/es throttle go fully open.----This should...
  17. R

    What should the piston psi be on late 70s 2hp outboards?

    Carburetor was the same from 68 to about 1990.----An mq-13 model is a 1967 9.5 hp.
  18. R

    Stator issue ( I believe )

    Any other trouble shooting done besides picking on the stator?
  19. R

    oil pump location on 90hp 2000 model merc

    partial teardown of engine is required to replace the gear.
  20. R

    1987 50hp Evinrude E50TLCUD Thermostat Replacement

    Did you ever post the actual compression values on this motor?
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