I need some help to find out what is making this squeaky sound, it happens when i accelerate and deaccelerate it sounds like its coming from the front/engine area and more to the left side,Im thinking could it be the engine mount? or something in the drive train area?
any info would be great thanks..

 

Drive belt tension probably needs attention. Just for chits and grins, also check to make sure that your bag lid hardware it tight, and that your header and/or heat shields are not touching anything.

 

Its the friggin drive belt. My wifes fatboy has done it for a while, even after having at the dealer twice. Drives us crazy. Doesn't seem like it should be so damn hard to fix but they can't get it right. I'm sure we will be back at it again this year.

 

saddle bag rubbers

 

I recently removed my saddlebags then went riding. Had a really annoying squeak. Turned out the right saddlebag forward hardwear was loose and squeaking.

 

Possibly the rubber bumpers holding the mufflers to the bracket under the saddle bags.

 

Ck the floor board, shift rod, and air cleaner all will squeak when loose

 

I would suspect the drive belt. The muffler mounts and saddle bags tend to squeak more at idle when they shake harder, than under power.