I to went through all of sqeaky pipe solutions on my Road King. Then, with the pipes hot and wearing a pair of welding gloves I pulled and pushed on the cross over. Ah ha the squeak. While dismantling, discovered the pipe hanger mount, allan head bolts at the engine were loose. (damm stealer had their hands in there a month back) dressed the screws and torgued them down. Problem solved. No issues since, whew very anoying

 

I am having the same chirping noise only on acceration at highway speeds. The noise sounds as if it is coming from the front of the engine. Any Ideas? Loose motor mounts? Something in the throttle body?

 

If all else fails, I found my squeak/chirp after many many months of searching. There is a rubber button on the rear brake caliper where it attaches to the swing arm. That was my source. I found it by accident. I pulled my rear wheel to change my tire, and saw the rubber there, and thought WTH, I'll silicone it up and see if it stops. That did the trick. I do have to reapply every now and again when it comes back.

BTW, the rubber hangers for the exhaust are somewhere around $5 for the pair.

 

I have a 2010 FLHX and it had the same annoying squeek, It was the rear muffler mount bushings. I sprayed them and it went away for a while. I finally replaced the bushings. Take the bag off, there is a metal plate that runs through the bushing and it is attached with two bolts. Remove the bolts, slide the plate out, push the bushing out and replace it with a new one, there is a extended lip stop on one end of the bushing. Slide the bar back in, rebolt, re-install bags. 300 miles later...the squeeking squeel is back...stick to the spray.

 

Lowes carries a very thick silicone grease by Solder Seal in the plumbing department. It might last a bit longer than the spray, maybe not.

 

I know this is a very old thread but, had a chirping noise on decel only. Found this thread and lucky after reading it I found the lower motor mount was lose. Sprayed and tighten it, took for a spin all gone. Was thinking lifters cam sprocket so much info on this forum worth a lot.

 

I'm having the same problem on decel only also. I put a new front lower motor mount and still the same little chirp.

 

Old drive belt? They chirp after long wear.

 

Wanted to add my thanks for this thread. Had the chirping noise on my 07 SG and couldn't figure it out. Removed the heat-shields on the D&D exhaust to try and isolate it. No joy. Read this thread, then went back out into garage and sprayed WD40 silicone spray on rubber bag mounts, and also on the main clamp that holds the pipes to the frame. Noise gone.

 

Had a similar chirp at idle and on decel on my '11 SG, ended up being the heim joint on the motor stabilizer link.