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techtalk:evo:elec01 [2019/06/17 18:35] ixl2relax [Grounding is Critical] |
techtalk:evo:elec01 [2019/11/11 05:25] ixl2relax |
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| For example:((sportsterdoc of the XLFORUM.net)) | For example:((sportsterdoc of the XLFORUM.net)) | ||
| - | |Blue wire was used for regular lighting power| | + | |Blue wire was used throughout for regular lighting power| |
| - | |Yellow wire was used for low beam headlight power| | + | |Yellow wire was used for low beam headlight power from the Hi/Lo Switch| |
| - | |White wire was used for high beam headlight power| | + | |White wire was used for high beam headlight power from the Hi/Lo Switch| |
| - | |Brown wire was used for the right turn signal power| | + | |Brown wire was used for the right turn signal power to the bulbs| |
| - | |Violet wire was used for the left turn signal power| | + | |Violet wire was used for the left turn signal power to the bulbs| |
| - | |Orange or Orange/White was used for Accessory power| | + | |Orange or Orange/White was used throughout for Accessory power| |
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| Be sure your multimeter BLACK Probe is properly grounded to the Battery Negative Post or to the frame. | Be sure your multimeter BLACK Probe is properly grounded to the Battery Negative Post or to the frame. | ||
| + | Also see additional information on batteries [[techtalk:ref:elec03#batteries|in the REF Section]].\\ | ||
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| In the early models (typically, 1993-earlier), **components were grounded to the frame** at a nearby point while power was distributed throughout the system on a minimal number of wires in the wiring harness. There could be as many as a dozen points on the frame used for grounding. The front lights & instruments were grounded thru a connecting strap between the fork risers & the handlebars. | In the early models (typically, 1993-earlier), **components were grounded to the frame** at a nearby point while power was distributed throughout the system on a minimal number of wires in the wiring harness. There could be as many as a dozen points on the frame used for grounding. The front lights & instruments were grounded thru a connecting strap between the fork risers & the handlebars. | ||
| - | {{:techtalk:evo:elec:86-93-handlebarground.jpg?500|}}{{:techtalk:evo:elec:86-93-devicegrounds.jpg?250|}} | + | {{:techtalk:evo:elec:86-93-handlebarground.jpg?500|}}{{:techtalk:evo:elec:86-93-devicegrounds.jpg?250|}}((http://xlforum.net/forums/showthread.php?t=2073777 - Pics from John Harper - Annotated by IXL2Relax)) |
| **Beginning in 1994**, the wiring harness itself began to carry ground wires to various components. The wiring harness by then consisted of many separate power wires to multiple locations, with a number of circuit breakers protecting the various circuits from overload. | **Beginning in 1994**, the wiring harness itself began to carry ground wires to various components. The wiring harness by then consisted of many separate power wires to multiple locations, with a number of circuit breakers protecting the various circuits from overload. | ||
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| IN EVERY CASE, the red lead is still on the positive battery terminal and the ground point you are testing should have a good connection back to the negative battery terminal through the ground connections of the wiring harness, the powertrain ground, the frame and the battery engine case ground point. If ANY GROUND POINT does not measure within .3v of the Reference Voltage, there is something loose, frayed, corroded or disconnected which causes the voltage loss. ((Contributed by IXL2Relax of the XLFORUM.net)) | IN EVERY CASE, the red lead is still on the positive battery terminal and the ground point you are testing should have a good connection back to the negative battery terminal through the ground connections of the wiring harness, the powertrain ground, the frame and the battery engine case ground point. If ANY GROUND POINT does not measure within .3v of the Reference Voltage, there is something loose, frayed, corroded or disconnected which causes the voltage loss. ((Contributed by IXL2Relax of the XLFORUM.net)) | ||
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| + | ===== 5 Volt Sensor Supply ===== | ||
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