I tried to sync.the carbs with a gage that I bought from harbor freight but the needle swings all over the place .the vac. is not steady it puffs air out then draws vac. so that I cannot get a reading.Any ideas on this ,has this been a problem with anyone else or is it normal? Art
I use some valves from a fish tank in line. Start with the valve open and slowly close it until the gauge stops wagging.