I'm assuming that the bike just stopped sparking? First check all your safety switches. The clutch switch, kick stand switch, neutral light is on? If not then the bike has two coils. So if you have no spark on all 4 cylinders it is probably your pick up coil, or pulser coil. The pickup reads the magneto which is timed for each cylinder. You can test it at the plug but this is something your going to need the manual for.
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I'm assuming that the bike just stopped sparking? First check all your safety switches. The clutch switch, kick stand switch, neutral light is on? If not then the bike has two coils. So if you have no spark on all 4 cylinders it is probably your pick up coil, or pulser coil. The pickup reads the magneto which is timed for each cylinder. You can test it at the plug but this is something your going to need the manual for.