I recently buy my first Firestorm. The seller told me that it have been working well since last year, but last Monday the battery was almost dead and he could not start up. I bought the bike with this knowledge. First thing when coming home was to check all wires and the voltages. Charging was ok, 14,5V and no peaks when increasing RPM. Took off the Regulator and checked it according to procedure, and it was fine. As normal, it gets warm when engine runs. Charging up battery, install and start once without any problems. Then I leave it to the next morning, trying to start. Engine turn but not starting, and battery fading out. So as the seller, I also suspect something stealing power from the battery. Battery is brand new, 12Ah, CCA180(EN). I am not very clever in electrics, so I need some advice for how to find out what's stealing power from the battery?
I do also look into changing battery to a 14Ah, CCA220(EN) to get more power on cold start. This battery is recommended for big twins like HD etc... I have checked measurements, and I can still get battery case lid and seat on. Only need to do minor modification to fasten the lid (without destroying it of course) Will CCA220(EN) be ok for the bike, or is it to strong for the electrical system?
