I get spark then goes away

[R.Rod]

Bike runs when it wants to it ran good until i killed it tryed to kik it back on nothing took off plugs kikd it nothing it seems like when i kik it fast enough of course plugs are off i get spark any ideas i did swap stator and coil at first i had no spark whatsoever let it sit couple days and went out yesterday and it fired up perfect great spark today kikd on a few times but now its dead again someone ever had this problem this shit sucks i havnt got to ride my bike just finished building it

[Oldskool83]

I have been going thru this for 3-4 weeks now due to trying to jett my bike...then spark decided to vanish again.

 

I bought a new OEM coil, Bought a new drag wiring harness off a guy on here and next will be a OEM stator and if that's not it I will buy a new OEM CDI.  Some days it would work, others it wouldn't.

 

Its prob one of those three.  Most will say test them but in my cause after being dicked over so many times by previous owner not taking care of anything I felt it was better to replace as much as I could now.

 

I had even used a OEM harness that was gutted and aftermarket coil spark came and went...so now OEM startor will be bought.  At some point its pointless to keep reusing and opening harnesses up and used parts. 

[R.Rod]

Today i got spark funny thing is that i smakd the crap outta my CDI box and kiked it over and good spark so im thinking maybe my cdi is done thats the Only thing i havnt changed yet...

[hoppedupandcutdown]

...but the easiest.