My 07 Road King has been having problems starting. It's mostly stock - just aftermarket air cleaner, pipes and power commander. It seems to only have problems starting in cooler temperatures.


The battery is not the problem as the starter will engage and turn the motor over for quite a while. Fuel doesn't seem to be a problem (can smell that fuel is being delivered). Once the bike is started/warmed up, restarting is not a problem.


I replaced the plugs and checked the spark while they were out. There was spark, although to my untrained eyes it did seem a little weak. Any suggestions as to where I should concentrate my troubleshooting? Coil? ECM? Power Commander? Thanks.