07-05-25, 01:25 PM
Late to the party on this one. Often misfires are simple, as mentioned above a cracked coil casing will do it as will cracked plug/s or plug caps even a holed/split HT lead. Check for arching, ride the bike and get it up to temp, either in your darkened garage or out side at night, remove the tank, start the bike and slowly rise the revs look down every plug hole and all around the frame area above the cam covers. If it's arching you'll see it, had a fair bit of this in over the years, sadly after owners had spent a small fortune!
Later