Bonneville America Forums Forums Rider Safety Forums Riding Technique Warm up techniques

I had a tech ask me if i ran my choke at warm up, which i thought odd seeing as i never broached the subject. He told me not to. Use it to start it, then push it in and let the bike do it's thing. When the motor is running a steady higher rpm, i guess it's good to go. But i'm glad not too many think it's bad to just jump on and go. I just hate to bang on a cold bike. I met up with some vintage riders and some run 20/50 also. What is the major difference between the motors then and now or is that to keep the motor leaks down?