138 engine LIFAN, start on any gear, 10.6hp

LIFAN 138-1P54FMI
Bore 54mm, aluminum cylinder
10.6 hp when combined with a Mikuni 26 carb (22mm section of the venturi) 
4 speed
Starting as possible without going back to neutral.
Do not fit for AGB29 because the clutch too long, falls in front of the frame. Or we may twist the lever !