after the exhaust system with stage one air kit was installed by a certified HD mechanic and download done by HD the bike acts up.When the bike is turned on it sputters or coughs, idles up but when idling down it sometimes turns off. Once on the road I don't have any problem only when I turn it on. I would like to know if anyone has had that problem and if so what was it. This only began after the exhaust system and download were installed.
2009 Harley Davidson Sportster with Vance and Hines Exhaust Straight Shot Slip Ons?
- Thread starter Roni
- Start date