Leader engine walbro carb.
Cleaned carb, new diaphragm, new intake manifold.
Carb seams to work on bench, blow in slot on intake slide goes up and down.
Acelarator pump shootin fuel and springing back ok.
Does not pull off well from lights and really struggles two up, plenty of power when gets goin, bit jerky at Minimum throttle so was thinking lack of fuel but mix screw not making any difference, worse I'd say when wound out, about on one turn at moment., Float seams to be working when bench tested.
Any ideas, should I just buy new kelvin carb for £130 ouch.
Could it be a vaculm leak or incorrect valve adjustment
What's proper number of turns on mix screw
Please help as really winding me up now.