Hot Compression good. The Latest diagnostic:
When throttle is Opened anywhere between above idle to aprox halfway. it is noted that the blue fuel pipe from rsg to carb draws air then fuel then air then fuel continuously causing rpm fluctuation and when it draws a bit too much air it dies.Idle perfect full throttle perfect. No air present in supply line. This seems to point to the REGULATOR. Checked Reg Diaphram will mag glass dont see any holes, cleaned and reasembled with notch facing foward towards prop.All fuel lines replaced would seem that reg not sealing properly. Plase help Dave