Having problems with spark plug not firing. Have replaced it. No change. Can ayone tell me where to start troublshooting? I know its going to be a pain to find. I have a test light. The wires going to coil does not show fire to them. Also, the wires coming out of CDI does show fire to them. I need help before I put to much money into non refundable electrical parts.

Thanks

 

Well if you said if you replaced the plug thats where I would have started also and if the coil isn't getting spark and the cdi is getting power and giving an output then you coil is bad and you will need a new one or you have a ground problem or you connection is dirty from the coil to the cdi, so chekc the connections first and I would try and get either a used or a new coil and you should be good to go if it is getting power how you tested...Welcome to the forums.