Hi there venture riders, I am posting a thread for the first time ever and here! I have enjoyed this forum since I bought my 83' venture 1200 and now have a reason to find some help. My bike ran good but lacked full power, I took off air box and noticed left rear diaphram slide not opening. I took outside cap off and found the metal sleeve seperated from the plastic slide. I took a little epoxy and reassembled properly, diaphram looked great. I started the bike and checked operation ( all 4 working properly) it now when warm idles at 3000 rpm. Checked choke and throttle cables lubed them and saw they were operating properly. I feel this is a vacuum related issue and can't find the fix Thanks in advance for any help, this bike is my only transportation right now.