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  1. R

    1999 Yamaha 115 difficult to start

    Get the battery load tested.----Then take the starter apart for inspection.------
  2. R

    4000 rpm

    Does spark jump a gap of at least 3/8" or more on each lead ?----Use a test device and not the sparkplugs.------Or start motor out on lake. ----Take up to full throttle with #3 plug wire pulled off.----Repeat with #4 and then #1 and #2----Also use a STRONG flashlight and look into each...
  3. R

    1977 Johnson 35 - Won't start

    There may be a " neutral start " switch on the motor.-----Find it / bypass it / test it / clean it.----I can not see your boat or control box.-----There may be a safety switch in the control as well.
  4. R

    4000 rpm

    He is not your " buddy " I think.------I think it is running on 3 of 4 cylinders.-----Should not be hard to figure out.
  5. R

    4000 rpm

    Your buddy with the marine shop should be able to figure it out.
  6. R

    Doral 360 - Water Trapped in Hull

    Hoping you took big steps in rapid succession away from this boat !!
  7. R

    4000 rpm

    Some orderly trouble shooting needs to be done.----Does spark jump a gap of at least 3/8" on each lead , yes or no ?---Did you torque flywheel nut to correct value ?----Flywheel key checked ?-----Checked for cylinder sleeve out of position ( rotated ) with scope ?----Replacing parts on a hunch...
  8. R

    Fuel pump for 6hp 6904E

    I would not trust parts from the ----Hooflungdung----Offshore source !
  9. R

    Force 125 88’ won’t run

    Timing off by 2 degrees does NOT cause a backfire.----Do some real trouble shooting I say !
  10. 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 ?
  11. 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?
  12. R

    Johnson leg

    There is ZERO chance it will fit !!
  13. 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.
  14. R

    Need not peeing on first season fire up

    Was a Mercury factory impeller installed ?
  15. 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.
  16. 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 !
  17. 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 ?
  18. 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 ?
  19. 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.
  20. R

    Need not peeing on first season fire up

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