same kind of thing on my 07 Speedy...only a slight tweak required.. I think the + pos side was the culprit..
now i check mine as a part of my " pre-flight"


07 SPEEDMASTER ..SLASHCUT BUBS.. NOLOGY COILS/WIRES ..PHANTOM BLACK ..CHROME COVERS...K&N PODS.. BEAUTIFULL WHEN SHE RUNS RIGHT..SHE WAS .. .. I LIKE HER>> ALOT ~~