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  1. R

    88 Special Carbs

    Have you confirmed that the high speed orifice plug is clean , yes or no ?----Engaging the electric primer valve puts fuel directly into the intake manifold.----This fuel bypasses the metering circuits and jets.----This strongly suggest there is an issue with carburetion !!----Yet you say...
  2. R

    1984 35 hp cough/sneeze

    I believe the reference was to changing the point where throttle plate opens.
  3. R

    Reed question

    I believe that thin metal strip is called a ----SHIM-----As per a factory manual.
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    1963 Evinrude 75HP Low Speed Jet Carb Adjustment

    Why do you say parts availability is a problem ?---Where have you looked for parts ?----Smooth surging is usually fuel related.----Perhaps test run with another tank and hose.----Check o-rings in fuel connecters.--Check / install fuel pump repair kit.---High speed jets confirmed clean...
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    88 Special Carbs

    The high speed jets ( orifice plugs ) are screwed into the FLOAT BOWL.---They are NOT in the main carburetor body.------Not sure how you would clean those with a wire brush.----Also check fuel pump diaphragm.
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    1991 mercury 90hp misfiring

    About 50 years ago it was a common question.----" The filter bowl never fills when motor is running , yet my motor runs fine ".-----Based on that I say normal.-----Tried opening low speed mixture screws 1/8th turn at a time?----Thermostat in place ?-----Some will argue , but I would pull off the...
  7. R

    97 Johnson 25hp goes into “limp mode”

    A 2 or 3 cylinder -----Model # is.
  8. R

    88 Special Carbs

    Perhaps test run with cowling off.----Perhaps test run with another gas tank and hose.
  9. R

    1987 johnson v4 110 cyl 4 not running

    Throw the reed valves on the shop floor and do a compression test.
  10. R

    looking for fuel pump kit...

    A ruptured fuel pump diaphragm would put fuel directly into the engine.----Easy thing to check.
  11. R

    looking for fuel pump kit...

    What trouble shooting have you done ?----Installing a fuel pump kit might even put more fuel into the carburetors.------Does the manual fuel pump on the hose go hard ?
  12. R

    looking for fuel pump kit...

    Is the fuel pump not working ?-----What is your motor doing / not doing ?
  13. R

    1987 johnson v4 110 cyl 4 not running

    The crankcase compression has absolutely nothing to do with compression in the cylinder !!----One of the reasons for so much confusion on simple trouble shooting.----Crankcase compression puts fuel air into the cylinder.----It can not ---" pack "--- the cylinder since exhaust ports ( huge holes...
  14. R

    Mercury 9.9 4 stroke long to short

    Does the motor have a 5" spacer between lower unit and exhaust housing ?
  15. R

    '95 120hp compression test results

    No need to open throttle for a compression test on this 2 stroke motor.
  16. R

    Outboard Overheating?

    ^^^---Applause on the above information.----Have seen many motors with tell tales destroyed from overheating.
  17. R

    1994 112 johnson spl. Will not idle.

    Sorry----Your inspection needs to start somewhere.-----A compression test is the first thing that most mechanics do.----If that passes the test then great.-----You will see many posts with ---" carburetors have been cleaned 3 times, motor still runs the same "----You would be sadly disappointed...
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    1987 johnson v4 110 cyl 4 not running

    There is a seal on the bottom of the crankshaft.----Prevents crankcase compression from leaking out.----There are metal seal rings on the crankshaft ( 6 of them ). that prevent leakage between crankcases.----Sorry----I am not there to inspect.----I can only suggest what might need to be looked...
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    Mercury 9.9 4 stroke long to short

    Serial # is ?
  20. R

    1976 Johnson 115 Rebuild/Upgrade Help

    So the cylinder heads were taken off 20 years ago and then the motor was set aside ???----They must have seen something.----Post pictures of cylinder walls.
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