HELP 125M weak spark??????

[250twostroker]

Well i was ridin my 1984 125m up and down the driveway, and it died, and wouldnt start again.:( took plug out and it was black, so i grabbed a new plug, still wont start. I took the plug back out and watched the spark as i cranked it over with the elec start, it was weak, no where near what it should be, what do you think is wrong??

[1985BigRed250ES]

check coil wire. coil could be bad also. stator, pulse generator, maybe a partially blown fuse somewhere in the electircal.

[250twostroker]

got it fixed earlier, coil to plug wire was loose easy fix