Yep Mech, the carb has the vacuum diaphragm on top of the carb. But guess what, I pulled the front fender off yesterday figuring it wasn't any more of a PAIN!! than pulling the carb off the rubber boots again! Tracing the rubber hoses, watched a guy 'Schneid15' I believe on youtube on the vacuum hose routing and traced mine, the 2 AFTER the carb on the air filter side are just vents. 2 hose connections on the intake manifold side are vacuum, vacuum connections have flared ends on them, one on the right side of carb sitting on it is the one to the fuel pump, one under the throttle cable is for use to the fuel pitcock, which I put a new one in before when I couldn't get it going when it stopped running, With the front plastic off, I found this 2nd one not connected, I pulled the hose off and put a vacuum plug over the carb barb and it starts immediately w/no choke even and revs up good. Went for a ride w/battery strapped on the front and it runs just sometimes missing on acceleration and I have to feather the thumb throttle a little and it then will go on and accelerate. Now all I have to work out is the miss sometimes. I have to admit, I've tried cleaning the plugs, went thru 3-4 new ones trying to get this figured out and they where fouling out in no time! I'll have to see how it goes before I want to pull the carb just to try to drill-out that screw! Wish I could find another decent used one to go through!