I have a 350 raptor with no spark what all could it be CDI? `` VOLTAGE RGULATOR? ``STATOR COIL? AND ARE the after market CDI boxes worth buying are there any gains as the say i was looking at a big gun rev box. And is there anything elese the could be be causeing this problem. ANY HELP WOULD BE GREAT IVE BEEN WITHOUT A RIDE FOR A MONTH NOW SO PLEASEEEE HELP!!!

 

What have you checked so far? Start with the little things if you haven't already. Put in a fresh plug, and make sure you have a good ground before you throw any other parts at it.