Ah! Time to talk clutch adjustments again. But guess it is more important to talk about your gas trail first. Sounds like the float may be stuck open in the carburetor, and not shutting off the fuel supply to the float bowl. It is possible a speck of dirt, or paint chips from the tank are lodged in the sut off needle affixed to the float. Often a "sharp" tap on the side of the carburetor will dis-lodge the obstruction and allow the float to do its job, if not you will need to remove the float bowl and clean the jet [easy to do]. Be sure to correct this problem, because in 1958 the same thing happened to my 1951 Whizzer Ambassador at a gas station, and then it backfired, and after the fire, my Whizzer was really a true black color overall. I also found that Whizzers with melted tires don't roll very well. nor is the seat covering fire proof. Anyway fix the fuel problem before adjusting the belts.
I am going to tell you how I adjust the belts, not how others do it or how any book covers the proceedure. The most difficult part is getting the front belt correctly adjusted, so I start with the front first. Most have a problem getting the front belt tight, not the problem of dis-engaging at the stop sign. I use the AX27 front belt, but the Whizzer is equiped with a 4L290 [1/2" x 29"]when new. If your belt doesn't break free when stopped, you should first check to see is someone discarded the metal bracket under the belt guard. The bracket is needed to cause the belt shape to lengthen when the clutch pulley is lowered. If you are missing the bracket then order from your Whizzer dealer [always support your local Whizzzer dealer when possible]. If you can't locate one contact me for assistance. Remove the rear belt from the rear sheeve for the moment. If the bracket is on your bike then adjust the cable to pull the pulley downward as far as needed to loosen the front belt. If the cable adjustment won't lower the pulley enough, then loosen the 3 screws on the clutch cable bracket mounted on the frame [on the seat downpost] and move it downward approx 1/2", re-adjust the cable to loosen the front belt. It is important to adjust the cable so that it grips when released and dis-engages when stopped, but never adjust with out the bracket in place. after you have the front adjusted, install the rear belt on the sheeve, but watch closely to see if the rear belt causes the clutch pulley to lower. If the pullery drops much with the rear belt installed it means the rear belt is too tight and the Wheel should be moved foward slightly. If moving the wheel forward causes the chain to be too loose, then loosen the top moto mount nut, and push the top of the motor forward slightly, and tighten the motor mount nut.
Hope this helps, if not ask again.
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