um, its one of those lil baby 2 smokers? guessing so cus its got a pullstart
the ignition is usually all self contained... like a brushcutter, chainsaw, etc etc...
from memory...theres only one wire from the "coil" thats screwed to the side of the cylinder(besides the spark plug wire)...and that goes to the kill switch, then returns to earth...DONT connect the wire to anything and you should have a spark

AND!!! dare you to touch it when it IS running
the main ignition switch must bypass the killswitch and short it straight to earth when its "off"...ie, with no key in it...
i just went n checked my lil quad...one wire, black.
id really like to have a look at this... i never seen a 50 with electric start besides the motoverts...