No spark

[BOSS LX]

I just built a 2001 shee from the ground up. I bought a know running motor, and just did a upper end rebuild.

 

 

I have 0 spark. When testing for voltage at the coil, I have like .4 volts when kicking it over.

 

Thanks for any help.

[BenBB]

I'd start with the stator, you can test it with an ohmmeter, chances are it's either the stator or CDI, especially if you just swapped motors and didn't do any wiring changes. Wiring is an outside possibility, if the black/white wire is grounded to the frame (or black wire) anywhere between the CDI and handlebar kill switch it'll tell the CDI not to fire. There's not a 100% way to test the CDI that I know of other than swapping in a new or known working one (and they ain't cheap). All the tests and values oughta be in the Electrical FAQ below, chasing electrical problems can be a pain but best I can offer is start with the simple things (plugs, switches, stator ohm reading, etc.), good luck.