Hello all 87 TW200. R&R stator, p/u, ign coil, plug. Verified all wiring, ground and switches n/o-n/c. Reluctantly leaning toward CDI, but don't like the pricing. ? anyone know of any way of determining its fault. Already froze unit to -40*F and still no spark except for the tools across garage floor. Lol. Any insight or info on aftermarket cdi is greatly appreciated.