Backfire on decel - VTXOA
Reply
 
LinkBack Thread Tools
post #1 of 11 (permalink) Old 07-10-2019, 10:10 AM Thread Starter
Junior Member
 
Join Date: Jun 2019
Posts: 4
Backfire on decel

Hi folks, I bought this 07 VTX 1300 about 12 days ago in Ohio...The whole way back to Pa. ran like a champ..Has ran like a champ UNTIL while planning a trip to Fla on July 19th figured should do some maintenance....Probably should have left it alone with only 24k miles on it.
I drained changed the oil, coolant, and rear gear lube...Lifted tank for access to rad cap and after changing the coolant I hooked a hose to the fuel line opening pulled from petcock, and while pouring fuel into a funnel up on other end of tube held @ eye level started the bike...It ran 20 sec or so then quit...So I started again and it ran less...So put that fuel line back in place, pushed the tank back on, started it and waited until coolant was visible coming onto rag have way down from cap...Thought all was well until next day when pulled out of shed and started....Ran about 20 sec and quit...Happened 3 - 4 times till I quit because of drain on battery..Hooked the trickle charger up to it and after coming home @ night charge lite was off meaning charged...Before starting took a real good look around everywhere I was working on it and found a tiny hose (perhaps a breather) disconnected from left rear side of pet cock...Put that back on and started...Seemed OK....Next day started up but had a backfire on decel...Has had it since...I saw mentioned on here "should not need choke" well I did try using it briefly but stopped when had no affect.....
I'm nervous about riding this awesome machine to Florida from Pa like this because I know this issue can't be good for the engine, carbs etc.
Any help deeply appreciated.
Thanks soooo much,
Buster
PS. Has drag pipes but did not backfire prior to doing this work on it.

buster711 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 07-10-2019, 12:04 PM
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 10,191
Garage
You probably have an open vacuum hose at petcock.
Two "Tee" fittings, several hoses, one to PAIR valve if you have it.
Intake manifold is vacuum source.

Vacuum Hoses also crack on the interior causing vacuum leaks.

You can read Eurodude adventures because he pulled a vacuum hose off.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 192,235 VTX miles
Hans&Feet is offline  
post #3 of 11 (permalink) Old 07-11-2019, 06:11 AM
Senior Member
 
Join Date: Oct 2015
Location: Port Orange, Florida
Posts: 2,117
Cool

Welcome from Daytona Beach, enjoy and ride safely.
steveroy60 is offline  
 
post #4 of 11 (permalink) Old 07-11-2019, 06:42 AM
Member
 
Blaine C's Avatar
 
Join Date: Aug 2018
Location: Prince Edward Island
Posts: 95
Garage
You have a vacuum leak......Most likely at T under tank.
Blaine C is offline  
post #5 of 11 (permalink) Old Yesterday, 10:59 AM Thread Starter
Junior Member
 
Join Date: Jun 2019
Posts: 4
Thanks..will check that ASAP
buster711 is offline  
post #6 of 11 (permalink) Old Yesterday, 11:03 AM Thread Starter
Junior Member
 
Join Date: Jun 2019
Posts: 4
thanks for the direction...gonna check that soon as i can
buster711 is offline  
post #7 of 11 (permalink) Old Yesterday, 11:53 AM
Member
 
Join Date: May 2012
Location: Longs, SC
Posts: 71
Are you using regular or hi-test gas?????
Bruin is offline  
post #8 of 11 (permalink) Old Yesterday, 01:32 PM Thread Starter
Junior Member
 
Join Date: Jun 2019
Posts: 4
93 octane
buster711 is offline  
post #9 of 11 (permalink) Old Yesterday, 01:38 PM
Pope "papa" of the VTXOA
 
Chicago-Spike's Avatar
 
Join Date: Nov 2003
Location: St Charles, IL.
Posts: 63,260
Quote:
Originally Posted by buster711 View Post
93 octane
Honda engineers designed the bike to run best on the lowest octane available. Use the lowest octane fuel

AMA Life Member 721314
Chicago-Spike is offline  
post #10 of 11 (permalink) Old Yesterday, 05:22 PM
Junior Member
 
Join Date: Jul 2014
Location: Louisiana
Posts: 21
Good riding to you sir. I have a 2007 vtx1300c that had decel back firing problems. I corrected the problem by de-smogging the bike.Not only did it clear the backfire but the bike runs fantastically better. There are several forums here on it. You may consider this option. Good luck and ride safe.
Bubblechaser is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the VTXOA forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in













Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome