2006 rocket three classic misfire

[Jai Bei]

I pulled my bike out. Had it running for a minute and warming up getting ready to take a ride and suddenly started Misfiring ignition was changed a year ago. Can’t find any loose wires. Everything seems fine. Was tuned up less than a year ago. Any ideas?

 

[Journeyman]

Of course it could be many things, but I'd check the small coil wires aren't loose (crimp and reinsert). Next, and probably more likely, would be cracked vacuum hoses or caps.