After 2 years my bike is finished with mods (exhuast=Cobra F1-all that I could find)(frame sliders & led blinkers-relocated A.Ness mirrors mounted below handle bars on fairing-lots of custom paint & powder coat) How ever now I canĀ“t get it to run with out starting fluid sprayed into carbs. I have traced & verified elec. (spark-cdi-pulse gen all pass test) Carbs cleaned, gas valve is good gas gets gas to carbs. Vacuum hose from top of carbs = ? HELP!