Sounds electrical and you have found part of the problem.
What I do is start from the battery positive and open and clean each and every plug, switch, connector and fuse holder all the way to the headlight, bar switches, tail cluster, ignition pick up and back to the grounds.
The kill switch needs the same treatment as the ignition switch and the plug for the coil may look ok but hide corrosion of the wires inside.
Odds are on a machine that age that there is more than one component acting up and in the long run it's easier to take them all on over a period than try to guess. In their wildest dreams the guys at Suzuki never saw these bikes lasting this long.
If a bullet connector looks dodgy it probably is and you are better off getting yourself a good crimping tool and putting on new spade connectors there.
One short cut is to get the bike idling and start pulling at plugs, particularly the fusebox tail and see if you can get the bike to flicker or cut out by pulling at wiring.
What I do is start from the battery positive and open and clean each and every plug, switch, connector and fuse holder all the way to the headlight, bar switches, tail cluster, ignition pick up and back to the grounds.
The kill switch needs the same treatment as the ignition switch and the plug for the coil may look ok but hide corrosion of the wires inside.
Odds are on a machine that age that there is more than one component acting up and in the long run it's easier to take them all on over a period than try to guess. In their wildest dreams the guys at Suzuki never saw these bikes lasting this long.
If a bullet connector looks dodgy it probably is and you are better off getting yourself a good crimping tool and putting on new spade connectors there.
One short cut is to get the bike idling and start pulling at plugs, particularly the fusebox tail and see if you can get the bike to flicker or cut out by pulling at wiring.