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  1. R

    4000 rpm

    Post compression test values.----Why were all the electrical parts replaced ??----Tachometer checked ?----Water pump impeller replaced ?-----Oil injection tested , if in service ?------Overheat horn tested ?
  2. R

    Fuel pump for 6hp 6904E

    These pumps are ultra simple to repair.----A new diaphragm will fix them every time.----These pumps are very simple / reliable.----Why is a new pump needed.----What is the motor doing / not doing?
  3. R

    Johnson leg

    There is ZERO chance it will fit !!
  4. R

    1993 Evinrude 30 HP tiller pull start

    Yes it fits.----Might have to check maximum timing advance.-----That is part of the starter bracket.
  5. R

    Need not peeing on first season fire up

    Was a Mercury factory impeller installed ?
  6. R

    Accurate Horsepower Figures

    Just find a shop that has one.-----I have one.----You read oil pressure and RPM to determine power output from a chart.
  7. R

    Accurate Horsepower Figures

    Hurry----Find a shop with a marine dynamometer.----Pay the pennies to hook up your motor .----It will test actual power output of your engine !
  8. R

    Easy way to fix a bad bleed valve?

    Are you sure these are located on the CRANKSHAFT ???-----What other trouble shooting has been done ?
  9. R

    Intermittent Start - Starflite 75

    Correct the unicharger has the battery ignition.----Weak spark is the major reason for hard to start issues.----So does spark jump a gap of 5/16" or more on 4 leads ?
  10. R

    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    Those are bypass covers for the bigger Mercury engines inline 4 80 HP and inline 6 cylinder 115 / 150 HP.----.----The 50 HP are much narrower.
  11. R

    Need not peeing on first season fire up

    I doubt you will find a poppit valve.----And there is no thermostat either !
  12. R

    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    Bypass covers ( there is more than 1 ) are on starboard side I believe.
  13. R

    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    You might have issues on #1 and #2 ----Too much fuel ??----The 105 PSI compression is a concern.----Remove bypass cover and have a look at the piston / rings.-----And no there is no head gasket that can be leaking compression !
  14. R

    1956 5 hp Gale Buccaneer

    You have to remove the powerhead !!!!-----Many consumable parts are available and the same as Johnson.-----Ignition , carburetor . water pump, gaskets and seals to name a few.
  15. R

    Lower end 2003 75 hp Mercury

    The impeller puts lots of drag on the driveshaft.
  16. R

    Lower end 2003 75 hp Mercury

    Generally you need lower unit and control the same.----So try lever in neutral.----And put lower unit in neutral.
  17. R

    Johnson 140 Sputters at Full Throttle

    Hook up a timing light.----Just 1 cylinder at a time.----See how spark behaved as you throttle up.----Just observe the flashing light.
  18. R

    1956 5 hp Gale Buccaneer

    Sounds right.------Post picture of this motor.-----Be easy to identify it.-----If it was built by OMC then many Johnson parts fit.
  19. R

    Intermittent Start - Starflite 75

    You might need a new impeller now.-----Is the belt timing correct?
  20. R

    Mercury XR6 150

    Compression test.----Post actual values here.-----Does spark jump a gap of 3/8" on all leads ?
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