All electrical circuits regardless of voltage or polarity require 2 sides or "legs" of power referred to as L-1 or Line 1 & L-2 or Line 2.
Positive and Negative in this case being 12 volt DC, households will have 1 hot leg and a Neutral for 115v or 2 hot legs and a ground for 230volt circuits, regardless all circuits require 2 sides of power.
All circuits require a switch to control the circuit
and all circuits require a "load" or device as in a light or horn etc.
Any circuit without a device or load is a direct short, same as if you laid a wrench across the terminals of a car battery.
A correct load will have just the right amount of resistance to not pull excessive amperage, i those cases a fuse may slow blow, or bake awhile to blow, while a direct short blows right now no waiting at all.
SOURCE: 1990 Yamaha Virago 535 Parts interchangeable with 2001 virago 250
Sure mirrors, nuts, bolts and screws. Maybe a fender and a bit of other stuff. But for the most part not much will match up and now you have this ugly monster in your garage and your next job is to figure out exactly how you are going to get rid of the da-- thing. Look a bit harder and get a match for your bike. Now you have something worthwhile.
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SOURCE: Have 1983 Yamaha Virago 550. Won't maintain charge??
Hi and welcome to FixYa,
Offhand, even if the the stator / charging coil is defective or for that matter even the regulator, the bike should start and run on a fully charged battery. The only problem would be that the bike would die eventually. If haven't been tried, have the battery load tested not just voltmeter test.
Please postback after the load test. Hopefully by then, I would have the wiring diagram.
Good luck and thank you for asking FixYa.
SOURCE: Can a voltage regulator/rectifier if not working
YES!
Good link here:
http://www.flygenring.dk/yamaha/artikler/1100ChargingSystem.pdf
Symptoms:
Lights flickering at times and/or battery gets hot to the touch
Problem:
Reglator/Rectifier
When the regulator dies, it allows as much as 19 volts to appear across the battery. This is not good. It will cook the battery and the battery could even explode. Fuse can not stand up to this!
SOURCE: yamaha r1 07 battery polarity is backwards, why?
Generally speaking, motor vehicles are negative ground. Back in the 40's and 50's, there were a few exceptons, i.e. some rare vehicles had a positive ground. Your bike may also be an exception but I doubt it.
Will there be an impact on your electrical system? Like my friend from Minnesota said, "you betcha". You may want to stop by the Yamaha shop in your town and make friends with a counter person in the parts department and ask her or him the question "... is my bike suppose to be negative ground???" Then go from there ...
Do you know how to test your rectifier??? Bridge rectifiers "convert" AC power to "DC" power by clipping off 1/2 of each cycle. The real term is "rectified AC" which acts like DC and will charge your battery. All vehicle batteries are DC. Bridge rectifiers pass electricity on only one direction. If yours passes neither direction or both directions, yours is shorted or open. You can make this test with a flash light battery, a flash light light and a paper clip or two. One configuration should light the light and the other, the light should not light.
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SOURCE: 1995 XV 535 Virago DX: 535 virago fork seal removal and renew...
caburator cannot adjust and now cannot speed
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