im not gettin spark from my fa50 but theres more too it then a dirty plug let me explain of bit of it first.
1) the spark plug is a clean brand new ngk, that fits and is perfect.
2) i took out the gas tank and in doing this might have disconected the cdi, i dont think i reconected if it was unhooked. the cdi is on the side of the gas tank
3) the spark plug wire/coil might not be working i cant get continiuity, i belive i am testing it right.
4) i do not have ignition points, so no prob with dirty ones, i have a cdi
im not sure what else to say, that hasnt been said. i will be responding to any quesitons about symptoms posted