1. J

    '05 Sportster 4-TEC - 5500 RMP = 20mpr top end - plugs or blocked impleller?

    Dealer winterized - normal 1st in water routine, fill with premium gas, add STP Injector cleaner as I have done for past 5 years. Launch boat - wife drives to dock, said was running rough while I was putting trailer away. Next day, attempt to go out but engine was running real rough (battery was...