Thirty-five bucks from Bike Bandit! What the hey? That's crazy money!
I already know that a normal, 3 connector automotive flasher doesn't work because I pulled a spare out of one of my many boxes of junk and tried it. I've looked inside the flasher, there's a typical coil and switching contacts and everything seems to be in place. I think it has just deteriorated until there's enough resistance to restrict the voltage flow and prevent the flasher from functioning.
But 35 bucks? Plus shipping? Good grief. I'll wait to call the local Suzuki store and see if they can get it for me for less money or less time before I order up one from Bike Bandit.