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  1. R

    2003 yamaha 50 4-stroke runs rough

    I have a couple of these fresh water motors.----One was declared scrap due to corrosion.-----Also given a 90 HP , declared scrap due to corrosion in water jackets !
  2. R

    2003 yamaha 50 4-stroke runs rough

    There were severe corrosion issues with motors of that era.-----Start with a compression test.----It sounds like a broken record on my part.-----Compression test is quick / easy / cost no $$$ and you learn a lot about health of the motor.
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    I have a 2000 90 hp Johnson model#J90PLSSE Fuel problem

    Does spark jump a gap of 3/8" or more on each lead ??----Post the actual compression test values.-----Water pump impeller replaced ?-----Possibly going into S.L.O.W. mode.----If your assistant operates the manual fuel pump , what happen ?----Why did you replace the VRO pump ?----Now mixing at...
  4. R

    Low compression - 1986 Mercury classic 50

    Remove bypass cover for #1 and have look at the piston and rings.----Post some pictures of what you see.
  5. R

    Low compression - 1986 Mercury classic 50

    Remove bypass cover for top cylinder.-----Inspect pistons and rings.---Easy to do and you learn lots.
  6. R

    Help!!

    Look for another model # somewhere.-------Perhaps inside on the lower cowling.
  7. R

    1985 9.9 evinrude misfire

    Checked fuel pump diaphragm? -----Cheap and easy to replace diaphragm if it is ruptured.
  8. R

    Most common problems with 4 cyl / 3cyl chrysler outboards

    I have trolled for hours and hours with a 63 Johnson 10 HP at 24:1 mix.----Rebuilt it myself.----Plugs do not foul.-----Find the real issue with your motors I say.
  9. R

    What oil should I use?

    Use the Mercruiser 25 / 40 oil.-----Sterndrives operate in a tough environment.-----Big waves are tough on bearings.
  10. R

    Transom question

    Agreed----Easy fix with plywood.
  11. R

    Help!!

    The motor is an ----" OMC Seadrive " -----Nothing but a longshaft outboard with special bracket to tilt it clear of the water.-----If it is a V-4 it is about 115 HP.----A V-6 could be 150 + HP .------Model # of the Seadrive is ?------Nothing like rebuilding a boat that you have now.------It is a...
  12. R

    Mercury Mariner 90HP Sportjet repair

    When a 2 stroke engine is submerged you MUST get it running ASAP or get help.----Bearings start to corrode in a matter of hours / days.-----So if this engine sat for weeks it might be damaged beyond repair.
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    Most common problems with 4 cyl / 3cyl chrysler outboards

    Install better non fouling plugs??
  14. R

    Most common problems with 4 cyl / 3cyl chrysler outboards

    ????----I used to troll for hrs with 235 HP V-6 Johnson.-----Parts / pieces do not know how big the motor is !!-----Motors in top condition will troll all day long !
  15. R

    96 johnson 150

    I doubt the motor will idle on 2 cylinders !!------Pistons must be installed correctly.-----There are 3 port pistons and 3 starboard pistons.-----And they are marked with " UP " or " exhaust side "
  16. R

    Johnson 35 Lower unit swap

    Yes----Driveshaft just slides out and the short will slide in.-----I would take that 78 lower unit apart and inspect / reseal it before installing it.----Unless the seller offers a warranty.
  17. R

    Merc 40 hp tracker dies after running full throttle

    Motor can run a WOT ( wide open throttle ) all day long.-----These 2 strokes can handle it with no immediate issues.
  18. R

    Yamaha f40bet overheating

    Could be corrosion issues / blown head gasket.----Post actual results of a compression test.
  19. R

    What would make a flywheel hard to spin? Starter won't spin it.

    Had a fellow call me for a flywheel for his motor.----Had no spark.----I said " you don't need a flywheel "----He drove 4 hrs to bring me the boat / motor.-----He had installed new expensive parts.---Turns out the first new part he installed was bad.----Easy fix here.-----So yes even new parts...
  20. R

    What would make a flywheel hard to spin? Starter won't spin it.

    Have it load tested !-----And get rid of the small diameter battery cables.
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