Question about 2000 Harley Davidson FLHT Electra Glide Standard

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95 Softail oil light comes on when it's warm only at idle.

It has hydraulic lifters and they aren't making noise so is the pressure switch bad or is it in the oil pump? The pump was just rebuilt with the motor. The light didn't come on before the rebuild.

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  • windyride1 Jan 19, 2009

    I use a racing straight 50 is that too light? However thiws is the oil I have used from day one. Thanks for the advice.

  • jonnykakez Feb 24, 2009

    Your Question
    why did my harley davidson oil pump quit working in mid flight , got hot and oil light came on push rods swap?
    oil pump quit push rodz.... ah. knockin.? harley 1982

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The only way to check the oil pressure switch is to remove it and replace it, or test with a analog guage, if the pressure at idle is 5psi or higher at idle just replace the switch, the switch is not real percise and harleys have a dry sump oil system, and the pump is a g-rotor style dry sump pump at idle the engine might have 5-15lbs of pressure when warm and higher with engine revs you didnt say what weight oil you are running it could be to light of a viscosity 10-50, use a heaver weight oil 20-50 or like i use in my bike (2002 FLHTCU w/sidecar) straight 60wt hopes this helps

Posted on Jan 16, 2009

  • Tom Diffin Jan 20, 2009

    you say you use a racing 50wt I hope it isnt a car oil, use only oil designed for air cooled motor cycle engines (air cooled oil is different than car oil it has additives that resist the heat generated by the engine to keep the oil from breaking down thinning out, the oil is used for lubracation and cooling, car oil will work in an emergancy such as a top off but thats it. I have had discussions in the past on this subject and belive me their is a diffrence,

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