I have been following the convrsion method to a T. I am trying to get a stihl 020 chainsaw engine on gas glow. The problem im having is that when I disconnect the lighter the engine quiits almost instantly. While on the lighter runs nicely. Could I have it still a little to rich which is putting out the plug? Ive got a 15-6 MAS prop on it and it seems very powerful cant wait to get it on my boat I was looking at this website http://www.scootworks.com/rdrc/gloplugs.html and was wondering if I should be using an OS #8 plug instead of the "F" plug. or do we always use a 4 stroke plug even on 2 cycles?