97 kdx 200, during a ride my sons bike was idling away and then stopped. Gave up trying to get it going on the trail. Once home got it going, but just died whilst revving. Cleaned carby, new fuel, only to discover that there is now no spark. Changed plug, no avail. Suspect plug holder, 0 ohms, will change it. But wondering about testing the coil and other electrical components in circuit, kill switch is ok first thing tested. Have been waiting on manual for 1 month now, on back order. Can somebody give me some insight on values and testing methods, for coil etc. As I would rather check them all at once than a peice meal approach.