I highly recommend sending the ignition back to CH in exchange for one with the Bosch plug cap. They swapped the new (unrun) one of a friend's for $10. Mine cost about $25 to change out the ign. lead and cap because mine had been run. I went through a month of fiddling to get rid of ignition RFI on a BME 50 before trying the Bosch. All RFI problems are solved and you don't have to worry about broken ground straps. All gassers should come with the shielded plug cap to begin with based on my frustrating experience.