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2nd March 2021
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Harley Engineer
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Join Date: Mar 2020
Location: Cleveland
Posts: 318 Sportster/Buell Model: XL 1200 Sportster/Buell Year: 1988
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Oil pressure switch testing
Need to know if the oil pressure switch is normally open or closed?! Having difficulty getting switch light to come on in on position.
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Mark Cunningham 88’ 883/1200
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2nd March 2021
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Biker
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Join Date: Jan 2019
Location: UK
Posts: 99 Sportster/Buell Model: XL1200T Sportster/Buell Year: 2017
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I doubt anything has changed over the years so I would expect the oil switch to be closed when no pressure and so supply the ground to the oil light. When oil has some pressure the switch opens, the ground will be removed and the light goes out.
https://serviceinfo.harley-davidson....t/view?id=5526 |
2nd March 2021
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XL FORUM TEAM MEMBER
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Join Date: Jul 2014
Posts: 7,015 Sportster/Buell Model: Xl1250S Sportster/Buell Year: 98 Other Motorcycle Model: Kawasaki Vulcan 500 Other Motorcycle Year: 95
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2nd March 2021
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Harley Engineer
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Join Date: Mar 2020
Location: Cleveland
Posts: 318 Sportster/Buell Model: XL 1200 Sportster/Buell Year: 1988
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Oil pressure switching
Quote:
Originally Posted by Andy56
I doubt anything has changed over the years so I would expect the oil switch to be closed when no pressure and so supply the ground to the oil light. When oil has some pressure the switch opens, the ground will be removed and the light goes out.
https://serviceinfo.harley-davidson....t/view?id=5526 |
Ok I ll check to be sure the switch is working! |
4th March 2021
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XL FORUM TEAM MEMBER
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Join Date: Jul 2008
Posts: 10,323 Sportster/Buell Model: 1200s Sportster/Buell Year: 2001 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1974
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check wiring, aka, loss of voltage to the switch
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4th March 2021
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Harley Engineer
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Join Date: Mar 2020
Location: Cleveland
Posts: 318 Sportster/Buell Model: XL 1200 Sportster/Buell Year: 1988
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Should be able to get power to the switch via the tank cluster lighting for oil light running switch wire to ground side of light and power from main harness to light. The cluster is a sport bob 3 light.
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5th March 2021
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Harley Engineer
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Join Date: Mar 2020
Location: Cleveland
Posts: 318 Sportster/Buell Model: XL 1200 Sportster/Buell Year: 1988
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Ok we have oil light but it stays on and only dims with rpm rise. And yes the oil pump is moving oil. Pressure switch?!
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5th March 2021
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XL FORUM TEAM MEMBER
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Join Date: Feb 2015
Location: Cheviot, OH
Posts: 1,886 Sportster/Buell Model: XL 1200 CX Sportster/Buell Year: 2016 Sportster/Buell Model #2: XLH 1000 Sportster/Buell Year #2: 1978 Other Motorcycle Model: XL 1200 R Other Motorcycle Year: 2005
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Sounds like it's the switch. A new switch is something like $15.00. It's part # 26554-77D. Peace of mind is easily worth fifteen bucks.
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5th March 2021
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Harley Engineer
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Join Date: Mar 2020
Location: Cleveland
Posts: 318 Sportster/Buell Model: XL 1200 Sportster/Buell Year: 1988
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Yes sir ordered one before the light issue and on the way!
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