2003 fatboy!!! Need help!!

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Sep 10, 2010 | 05:25 PM

cohp19

Thread Starter

Intermediate

Joined: Sep 2009

Posts: 47

Likes: 2

From: texas

2003 fatboy!!! Need help!!

I GOT A 2003 FATBOY THATS BEEN BACKFIRING ABOUT A WEEK!! I CHANGE THE FUEL INJECTORS STILL DOING IT>>>> ADDED A POWER COMANDER AND STILL DOING IT>>> CHANGE THE AIR FILTER STILL BACKFIRING!!! IM RUNING OUT OF OPTIONS!!! HOPING SOMEBODY CAN HELP ME HERE>>>> THANKS!!!

Sep 10, 2010 | 05:34 PM

fcsallan

Road Warrior

Joined: Jun 2010

Posts: 1,337

Likes: 4

From: Sunny South Florida

Cam tensioner gone? I can't imagine it would be that drastic but it's a thought.

Sep 10, 2010 | 05:45 PM

hspring03

Elite HDF Member

Joined: Jul 2007

Posts: 3,891

Likes: 54

From: Mansfield, MA

Plugs, wires, bad grounds........Start with the basics....

Sep 10, 2010 | 06:00 PM

cohp19

Thread Starter

Intermediate

Joined: Sep 2009

Posts: 47

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From: texas

Quote:

Originally Posted by hspring03

plugs, wires, bad grounds........start with the basics....

got all that done!! Its driving me crazy!!

Sep 10, 2010 | 06:05 PM

scubadnv

Cruiser

Joined: Jan 2009

Posts: 143

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From: New Mexico

Check for loose exhaust fittings. Does this happen on deceleration only? It my be pulling air into the exhaust system causing backfire. Any recent mods ie new exhaust?

Sep 10, 2010 | 06:14 PM

kerrycorcoran

Tourer

Joined: May 2006

Posts: 449

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From: Nebraska

How many miles? Have you changed anything on the bike just prior? How old is the fuel in the tank? With enough details should be able to narrow this down.

Sep 10, 2010 | 07:08 PM

cohp19

Thread Starter

Intermediate

Joined: Sep 2009

Posts: 47

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From: texas

Quote:

Originally Posted by kerrycorcoran

how many miles? Have you changed anything on the bike just prior? How old is the fuel in the tank? With enough details should be able to narrow this down.

ok.........it has a 3 year old tank....basicly its new....bought the bike with a d&d fat cat and stage 1 ac.......never had any problems before.....change the plugs 3 days ago....the cables still in good condition......i had used amsoil for the last 7 years.....change all the injectors 4 days ago.....still doing it!!! Running out of options!!!