oldjohn

iv'e checked the continuity but not sure how to check for power to them.i have new plugs nothing better with the sparks

yes the top one feeds1&4 the bottom one feeds 2&3 no spark at 23 both coils are new

thanks.

hi there i'm having trouble with the spark at the plugs weak spark on no;1 cylinder 2&3 no spark 4 right colour but not in the right place iv'e put new coilin new battery also checked the pulse coil and wiring with a multimeter seems ok changed the ICU no difference now thinking its the timing rotor as the bike as done 60,000 miles any ideas please.