2018 road king with 2000 miles. stage one high flow A/C, exhaust and SE super tuner.
When hot the engine seems like it is running on one cylinder. Rough. No power. When the bike is above 3000 feet elevation, the motor shakes and has no power. This is a brand new bike broken in properly. I don't get it. Just spent 30 grand on this new bike and it runs crappy. Runs great when cold and at sea level. Any suggestions?

 

take it to the dealer????

its brand new.

 

Too obvious, I reckon!

 

Yep. I took it to Sac HD. They drove it cold and said it was fine. Waste of time. I guess ill take it back there.

 

You bought a brand new bike, and I'm sure one of the factors was the warranty, I'm sure. The dealership isn't gonna be too motivated to put a lotta effort into sussing out your problem. You're gonna have to push on it to get satisfaction.

 

Try a different HD dealer

 

 

Is it possible that the Engine Idle Temperature Management System (EITMS) is acting up? It may not be switching off when the throttle is engaged.

EITMS Explained -- When engine temperature reaches a predetermined point at idle, the EITMS will turn off the rear cylinder fuel injector. Idle speed will be maintained, however, the rear cylinder will become an “air pump” which will work to cool the engine by sucking in air.

I used to use the EITMS feature but when I did my Stage 1 upgrade, the engine ran cooler and smoother so I disabled the EITMS (check your manual). I just found it annoying and it really didn't cool the engine all that much.

 

Is this an ongoing issue or something that has just started happening ?