After a long trip a couple weeks ago, the bike hasn't seemed to be the same. I can't seem to figure out the problem, so thought I'd post the symptoms here.

It doesn't seem to rev as high, seems to have more vibrations, seems to pop and backfire a bit more and doesn't seem to pull as hard.

I thought it was bad gas, so I ran it out and been putting good stuff in. I also replaced the plugs and wires, but they didn't look real bad.

Any ideas what could cause this? I do not have a power commander or anything like that, but instead the SEPST map that I've been running for almost a year.

I wouldn't say it runs real bad now, but it does seem to be running differently and not as strong as before.

 

Model/Year/Mileage?

 

Two things come immediately to my mind:
inconsistent fuel flow (plugged gas/air filter)
inconsistent voltage (loose batt/ground wire)
Hope you find the "bug."
~

 

Exhaust leak? Check all the connections in your exhaust system. This would be something easy to do first & could cause your symptoms.
Had this happen to me on a Sporty one time...same symptoms as you describe. Turned out my cross-over pipe had cracked and was leaking. New part=problem solved.

 

The bike is an 07 Wide Glide with about 15k miles.

 

Exhaust leak? Check all the connections in your exhaust system....as Sharkman73 said.

 

From reading what you posted as symptoms, I would start looking at doing a compression & leak down test on the motor. Also on the intake is a capped off vacuum port, I would put a vacuum gauge on it and get a reading on that also. Once you have those two sets of readings you should know if it's a mechanical problem or not, if/and everything is OK, then it is an electronic problem.

but what do I know

 

Thanks for the info! You know, I was messing with the exhaust just after the trip. I was adjusting the heat shields, but maybe I pulled something loose.

 

One thing I would do is clean the battery cables. About 10 years ago I did clinics for automotive fuel injection and computer control systems. Bad battery conections where one of the main causes.

 

Almost due for a fuel filter. Good place to start. + other responses.