i was riding my mc21 only a few miles from home when she cut out grabbed the clutch pulled over, didn't nip up so tryed the horn to see if it was the battery it was totaly died so ok the rectifier has gone no problem got it back home charge the battery, got lights every thing works but i don't have a spark on both
. i have 400s and the rectifier goes pop some times on them but you can still start the bike up and then check the volts when running to make shore. what do you think it might be i've tryed new plugs checked all the connector and WD as i go along arrrrrrhhhhhhhhh this bike don't like me 
if you have any ideas i could use them alot please thanks marcus