do these parts need to be replaced? spark problems

[abdraba]

hi
i have a monster pro series and i was wondering like technically if there is only somtimes spark does this mean a actual part might be faultly like is there any chance that a magneto or CDI would only perform sometimes. and not allways.
thanks alot guys.

 

[Custom]

yeah anything electrical can have intermitent faults but check wiring conections too, they are most likely the cause. Always check the cheap stuff first when hunting faults

 

[draino]

Make sure you are earthed to the frame sometimes or most of the time earthing to the motor is not enought.