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Next, start the bike and check it again, with the lights off and engine running about 1500 rpm. To check your charging system voltage, with the engine off, check the voltage across your battery with a multimeter. Read: Harley Points And Condenser Motorcycle Charging System If you're thinking of installing taller handlebars, you'll need to extend the switch wiring harness. Handlebars are one of the first things riders change. They will work in either a 6v or 12v system. You can re-use your headlight switch, brake-light switch, and high-beam switch. If you have warning lights on your dash, these bulbs should also be changed. Headlight, tail-light, parking lights, dash lights all 6 volt bulbs must be replaced with 12 volt bulbs. If your gauges are electrical, they will need a voltage reducer to make them work. If your gauges are mechanical, there's no problem converting 6v to 12v. So there's nothing wrong with using 6-volt wiring in a 12-volt system. Changing to 12v cuts the amperage load approximately in half. This is because it's heavier because 6v has to carry more amperage than 12v. If your 6-volt battery and electrical system are in good shape and the motor has not been extensively modified, you should not have any problems with the original 6-volt system.Ī 6 volt wiring system and switches are more than enough to handle 12 volts. Harley-Davidson used a 6-volt electrical system on motorcycles until 1964 and on Servi-Cars until 1963.
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They should also be kept away from heat (cylinders and exhaust).
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Some builders like wrapping wires in electrical tape, or only use heat shrink tubing on the ends.Īll these methods will work, what's important is that the wires are secure and are away from any sharp edges. I prefer to route any length of wire longer than a couple inches in either cloth or plastic wire looms.