Rough Idle

[Joe2007ultra]

OK Guys I need more help.

11,000 miles on it. No mods all stock engine.

Rough Idle sometimes almost feels like its going to stall. Sometimes it is fine. Does not matter if its cold or hot.

Checked Fuel Pump pressure ok. Did the take fuse out test ran and stalled. If pump or hoses leaking would not have started ( Correct)?
Ckecked for intake leak no leaks
Plugs looks good.

No codes

Anything else? CKP sensor. Is there a check I can do on it?

 

[glider]

It's all in the self help area.

Crank Sensor (CKP) - Harley Davidson Community

 

[Joe2007ultra]

Thanks !

Not the CKP sensor. Checked out good.

 

[03classic]

You may want to look at Idle Air Control motor

 

[NEWHD74FAN]

Did you pickup bad gasoline? What were the circumstances before the problem...recent service, added accessory that may have introduced "collateral damage"?

 

[Joe2007ultra]

Well Glider nailed it. Rear Intake Manifold sucking air. How can harley still be putting rubber gaskets on a cylinder head that generates as much heat as this bike? It amazes me. Some things they do great and others are mind boggeling. What a job changing them.

Glider thanks!!!! Ran it and sprayed contact cleaner white smoke came puring out exhaust.

 

[glider]

Glad you found the problem.

 

[Joe2007ultra]

Have you seen many with problem? Only have 11,000 miles on it .

 

[glider]

All I can say is you're not the only one with this problem. It's a Harley

 

[Joe2007ultra]

Thanks again!!

Love them , but boy makes ya think now and then. $22,000.00 and I am always working on it.