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Join Date: Nov 2007
Location: Chandler, Arizona
Where is the hum coming from? Are all the bulbs good? Are they real bulbs or LEDs? The noise must be coming from the relay, but I've never heard of that before. They either click, or do nothing. The Vulcan uses a simple thermal relay. The resistance of the bulbs causes the contacts to open, they immediately cool off and close. This happens over and over again, which is what causes the lights to flash. But the resistance of the bulbs needs to match the flasher for it to work properly. Do the bulbs come on at all?
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike