M mart CB750 Member Messages 16 Reaction score 0 Points 1 Location n ireland Feb 20, 2014 #1 HI Guys, My bike has a good spark on cylinder 1 but very weak spark at cylinder 4 ( same coil ) also cylinder 2 good spark cylinder 3 very weak spark again same coil , i swapped the ht leads round and problem stays the same on 2 and 3 , any ideas
HI Guys, My bike has a good spark on cylinder 1 but very weak spark at cylinder 4 ( same coil ) also cylinder 2 good spark cylinder 3 very weak spark again same coil , i swapped the ht leads round and problem stays the same on 2 and 3 , any ideas