06 streetglide intermittent starting problem

[rcrook]

have this starting problem driving me nuts, it started wednesday , in the am bike would not start, motor would turn over, just not very fast, on friday started right up, that night did it again, turned over real slow, no start,, saturday started, several times in a row, on sunday no start, swapped battery out, started, road all day was fine, that evening did it again, was at a bar, was able to push start it, couple hours later started right up, today still started, took some readings:
checked volts at battery 12.82
with ignition switch on 12.30 volts
starting it drops to 10.69
running 14.25 volts
starter is engaging as it turns the motor, just real slow when it doesnt start.
ignition I would think is good since it started fine where push starting it.
same problem with 2 different batterys.

[maddogg4]

check the large ground wire where it is connected to the frame down by the starter. had the same problem years ago. Just cleaned the connection and retightened.

[ChopperDude]

Yes... I was a tech and had an '06 that did the same exact thing. Maddogg4 hit it on the nose, it was the ground for the starter at the frame (well, back of the primary, actually).

Check there, and check the connections at the battery as well, even though you probably already did that when you swapped the battery.