I just bought a non running 83 virago 750 with a title for $300. Got it running in about 3 hours. It idles real good with choke on and after it warms up you can take some of the choke off (not all) or it will die. While its idling good if hangs up at RPMs when revving it. I am going to check the oil today to see if it smells like gas. If it does I'll just rebuild the carbs as I'm assuming its letting gas into the engine. Otherwise I'm thinking I just need to adjust the carbs. I havent touched the mixture screws and I've kind of touched the idle adjustment screw. But I'm pretty sure you dont want to adjust those things with choke on. Any ideas?