my 2010 road king classic is hard to start at times. kicks back like its out of time. third try it will start normal or could this be a weak battery? voltage test shows 12.79 battery all most 5 years old.

 

A static test might show 12 volts, but it's cranking power that really matters. Take the battery to an auto parts store and get it load tested. At 5 years old you're probably ready for a new one but before you do anything else get it tested properly.

 

Kick back could be caused my compensator. I had similar starting problem, tried new battery and stronger starter no luck. Recently installed a SE comp problem fixed.
https://www.hdforums.com/forum/dyna-...mendation.html

 

Mine was doing the same thing about a month ago and it tested fine when I rode it to the shop. But cold starting it, it'd drag and act like the battery barely had enough juice to crank it. I finally replaced the 22 month old battery snd it's been like new since.

 

your past due for a new battery....

 

thanks for all the feed back.