This is a genuine Mikuni VM18-144!
Equipped with
Main jet: #70 (4/042 size)
Low-speed jet: #30 (VM22/210 size)
Throttle needle: 4F18 (J8-)
Needle jet: O0 (145 size)
Throttle: 1.5 (VM18/158 cut)
Needle valve: 1.5 (VM15/172-)
Air nozzle: -
Physical dimensions
Connection dimensions to motor: 23 mm (clamp mount)
Outer diameter at air can: 32 mm
Total length: 67 mm
From center to highest point: 67 mm
From center to lowest point: 55 mm
Idle screw: left side
Float height: 22 mm.
Air screw: 1.5 turns