Sullivan remote glowplug connector>
I bought one and mine wouldn't lock on either! Tried it on several different plugs and couldn't get it to lock on them also. I even tried removing the plugs from the engines and still no luck. This was on both 2 & 4 strokes.
I tried the needle nose trick but eneded up breaking the locking cap so I dyked it off and soldered on a wheel collar, works fine now!