2009 Ultra smoking...

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Sep 17, 2009 | 12:01 PM

Mav

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Tourer

Joined: Aug 2008

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2009 Ultra smoking...

I have 2009 Ultra that is bone stock just like the day I picked it up from the dealer. While on a 1200 mi trip to the mountains this past weekend, everyone that was behind me on downhill hard deceleration (3000+ rpm w/o any throttle input) stated my bike was smoking out of the left pipe and the left pipe only.

It did this consistanly and a repeatedly on hard decel over a period of 3-4 days. The smoke was described as blueish, not black or grey, so I'm thinking oil smoke. Why would hard decels cause this smoking condition if I had a problem like bad cylinder ring or valve seal issue? Why would it not just smoke all the time? The bike runs great and I didn't see any measureable diff in the oil levels over the weekend but I didn't check the oil before I left or after I got home so really don't know what the level was to start with...

The spark plugs look great. Both cylinders are burning greyish/white. Bike now has 2700 miles...

Sep 17, 2009 | 01:23 PM

gunner11

Ultimate HDF Member

Joined: Apr 2008

Posts: 5,356

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From: Roswell, NM

Two Words: Warranty/ Dealership.

Sep 17, 2009 | 02:06 PM

cbears

Road Warrior

Joined: May 2008

Posts: 1,622

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From: Topeka, KS

I would say something is not right, maybe be big, may be small, but something is wrong. JMO. I never want to see any sort of smoke coming out of my pipes. Of course, I don't really know ****, but I'd hit the dealer ASAP.

Sep 17, 2009 | 02:47 PM

cayers

Extreme HDF Member

Joined: Feb 2008

Posts: 13,422

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From: Las Cruces, NM

What they said.

Sep 17, 2009 | 02:53 PM

semiret

Tourer

Joined: Aug 2009

Posts: 287

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From: N/A

+1 - dealer/warranty

Since this only happens on hard deceleration, I wonder if it has something to do with increased engine vacuum?

Sep 17, 2009 | 03:40 PM

hojones

Ultimate HDF Member

Joined: Sep 2006

Posts: 5,535

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From: Salem, Va.

I believe it's the way HD has designed their breather system. Your oil vapor is being pulled thru the hoses in the AC more than normal. If I decelerate hard I keep my throttle cracked just a tad and that seems to eliminate most of it. I bet your AC was full of oil too.

Sep 17, 2009 | 03:49 PM

Yachtman

Road Warrior

Joined: Mar 2008

Posts: 1,325

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From: SE Florida

Quote:

The bike runs great and I didn't see any measureable diff in the oil levels over the weekend but I didn't check the oil before I left or after I got home so really don't know what the level was to start with...

This confuses me!