a reconditioned Type 76 sidebowl promptly started being a pain. ....... Just died of fuel starvation after about 5 seconds, until the throttle was closed a bit and all was restored except road speed. All for the want of fuel, obviously, but whether from a lack of float height (unadjustable basically although I tried and cost myself a few litres of precious liquid all over the magneto from the overflow hole), or for want of a larger main jet I do not know.
I've experimented with fully remote float bowls ages ago and found that passages from float bowl to main jet had to be a lot bigger than I thought would be necessary.