I ride a 2005 flhrci I went on 400 mile ride this weekend and on the way back it started missing out the check engine light never came on the last 60 miles it was getting bad it didn't want accelerate and 5 gear seemed to be a struggle for it I thought maybe I got some bad gas so I stopped and put some stp gas treatment in it and it ran a little better for a few miles then it got worse but I made it home and checked for any codes but there were none what might I look for gas filter problem maybe bike has 33000 miles on it now

 

Start cheap brother, spark plug, air and gad filters, drain tank ect.hopefully one of those will be the problem., check for a strong spark, google /youtube that, its easy.if no results, it may be time to spend a little more $.good luck, ga.john

 

If you haven't changed the fuel filter in 33k, that's the first place I would look, along with what was said above.
Then I would check the battery cables (including grounds) and the condition of your fuse and relay connections.

 

thanks for the replies so fast the plugs and plug wires are almost new but I will check for good spark first then go from there I just took it on another very short ride it starts and idles very good but under acceleration its still running very rough the bike had 25000 on it when I bought it has only had one other owner so I don't know if the filter has been changed or not is there a way to check the fuel pump before I take the tank canopy off or should I just expect to change everything in there while I have it apart

 

Any updates on what was wrong? My 02 Heritage is doing the same things.

 

sorry wrong message

 

Another common problem that will give you these symptoms is a hole in the fuel line inside the tank. If you don't have a fuel pressure guage for HD's with the tank less than half full open remove the fuel cap, put your ear by the tank and cycle the ignition on, if you hear fuel spraying you have a leak inside the tank. Which is not allowing enough fuel into the injectors.

 

Yep, this. My 02 Fatboy did the exact same thing a couple months ago. It was the gas line in the tank. While in there you might as well change the filter and the check valve. No problems since.

 

Just thinking that this problem with holes in the fuel line is a pretty common problem. Maybe there should be a sticky about this. JMO