Lots of popping during decel

Reply Subscribe

Thread Tools

Search this Thread

Apr 10, 2017 | 10:36 AM

MajorK

Thread Starter

6th Gear

Joined: Apr 2017

Posts: 13

Likes: 2

From: Maryland

Lots of popping during decel

I have an 04 1200R, it's carbureted and stock. It just started popping a lott when I let of the throttle to decal and brake. Is this normal? Do I need to adjust the carb?

Thanks,

Apr 10, 2017 | 11:17 AM

stereoguy

Outstanding HDF Member

Joined: Jun 2011

Posts: 3,126

Likes: 550

From: Springfield, IL

Sounds like exhaust leak. I had an exhaust manifold break and caused mine to do that.

Apr 10, 2017 | 11:52 AM

lewk

Road Warrior

Joined: Apr 2012

Posts: 1,755

Likes: 253

From: Northern Los Angeles area.

Are you using a different gas brand or gas type?

Apr 10, 2017 | 12:44 PM

MajorK

Thread Starter

6th Gear

Joined: Apr 2017

Posts: 13

Likes: 2

From: Maryland

Lewk,

I'm using standard pump gas from Royal Farms, so the quality/consistency is whatever they are buying.

Apr 10, 2017 | 01:06 PM

cHarley

Club Member

Joined: Feb 2007

Posts: 16,320

Likes: 306

From: Boynton Beach, FloriDuh

Quote:

Originally Posted by MajorK

Lewk,

I'm using standard pump gas from Royal Farms, so the quality/consistency is whatever they are buying.

FYI - Your 1200 is spec'd for 91+ octane.

In addition to a possible exhaust leak, a lean fuel condition will cause decel pop. A 2004 should be due for a carb rebuild and intake gasket replacement if it hasn't been done. Dirty jets/passages in the carb or leaky intake manifold gaskets can lead to running lean which can cause decel pop.