I have an 89 VR I have been trying to get running. I am have trouble getting the carbs synched. I can get them all the same, but only 4-5 inches of vacuum running smooth, but poor throttle response, or one side at 10 inches but zero on the other side,with smooth idle but usually dies with throttle movement. If I nudge the choke just a hair I can get all 4 to 10 inches with good throttle response. If I release that small amount of choke the idle slows and it stalls. Any insights on what to check.
BTW good gas, new fuel pump and filter, new plugs,air filter, carbs cleaned and new battery.