Running rough when cold after tune up - Victory Forums - Victory Motorcycle Forum
Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 15 (permalink) Old 05-06-2014, 06:49 AM Thread Starter
Junior Member
 
Join Date: May 2012
Posts: 11
Default Running rough when cold after tune up

A couple weeks ago I changed the oil, plugs, and a k&n drop in filter to get the bike ready for summer, and since then the bike continuously seems to hate running while cold more and more. I hate letting the bike sit in front of the house warming up especially during the early mornings due to the (unknown brand) of slip-ons that im sure are much louder than the neighbors appreciate.

When cold:
Rough idle, jerkiness, once in a while stall, backfiring.

When warm; bike runs fine minus occasional backfire.

Any ideas what would cause all this?
06hammering is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 05-06-2014, 06:50 AM Thread Starter
Junior Member
 
Join Date: May 2012
Posts: 11
Default

2006 hammer, 15,000 miles btw.
06hammering is offline  
post #3 of 15 (permalink) Old 05-06-2014, 12:21 PM
Senior Member
 
visionjohnny's Avatar
 
Join Date: Sep 2010
Location: minnesota
Posts: 12,868
Default

Not sure why when cold its running rough and hot its ok.
Check your plug wires at coil and at plugs. Make sure there on all the way.
Check for a vacuum leaks.
Tells us more

2008 Vision
Mpls, MN.

Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks
visionjohnny is offline  
Sponsored Links
Advertisement
 
post #4 of 15 (permalink) Old 05-06-2014, 12:28 PM
Lifetime Premium
 
LILMAGS500's Avatar
 
Join Date: Apr 2013
Location: Peoples Republic of Massachusetts
Posts: 9,684
Garage
Default

Make sure your battery is a good one and fully charged
Be sure battery connections are as tight as possible
Check your plugs and make sure you have the proper gap , and that the porcelain is not cracked
Make sure your are using the correct plug #
Check spark plug wires , sometimes removing them may cause a bad connection at the metal clip that actually attaches to the plug , be sure they are secure
Be sure you didn't inadvertently disconnect any vacuum hoses , or tweak anything that may have caused a vacuum leak
If it was running fine before you did what you did , there in lies the rub
Good luck

2014 Cross Country
2014 XC , Lloyds A/F , Timing Wheel +4 , PCV , Miller Mufflers , 1/4 Turn Throttle Ring , Dyno Tuned by KMC Powersports 98HP 113 TQ
LILMAGS500 is offline  
post #5 of 15 (permalink) Old 05-06-2014, 08:02 PM Thread Starter
Junior Member
 
Join Date: May 2012
Posts: 11
Default

After about 9 hours of sitting battery was still at 12.98v.
oil is right at full line.
Couldnt hear or feel any vacuum leak but havent removed the tank yet but this seems like my best bet.
Also i increased idle to 1000 but didnt help.
Both plugs did have a slight black dusting around the electrode i assume this is normal? All else was tight and appeared fine
06hammering is offline  
post #6 of 15 (permalink) Old 05-06-2014, 08:05 PM Thread Starter
Junior Member
 
Join Date: May 2012
Posts: 11
Default

Could the new filter have made the already lean issue this much more noticable particularly when cold? Might be looking at lloydz tuner sooner than i thought
06hammering is offline  
post #7 of 15 (permalink) Old 05-06-2014, 08:19 PM
Super Moderator
 
vindex1963's Avatar
 
Join Date: Nov 2011
Location: Phoenix
Posts: 4,824
Default

Quote:
Originally Posted by 06hammering View Post
Could the new filter have made the already lean issue this much more noticable particularly when cold? Might be looking at lloydz tuner sooner than i thought
I would have to think just a filter wouldn't do that unless you were right on the edge. Do you have the reflash with the aftermarket exhaust? Put the old filter back in and see.

2015 Cross Country (bought new 7/11/15)
2015 Suzuki V-Strom DL650 (bought new 4/26/17)
1/4 turn throttle ring
Tank riser
VM-1 DR cams
Timing wheel +4
Lloydz high-flow air cleaner
Bassani baffled OEM mufflers
PC-V 118hp 116tq
If it's not broke, make it better
vindex1963 is offline  
post #8 of 15 (permalink) Old 05-06-2014, 08:34 PM
Lifetime Premium
 
p.hunt's Avatar
 
Join Date: Jul 2013
Location: Roseburg Oregon
Posts: 458
Default

If it was the K&N with a new vented side cover then that's your problem. Put the original side cover back on leave the K&N in and it should solve it.

2012 Vision - in process of converting to Cross Country rear end and bags
Lloyd's -Filter-Timing wheel-Adjustable Intake-Throttle ring
PCV5
Home built 2 into 1 pipe with dummy pipe on left looks stock
p.hunt is offline  
post #9 of 15 (permalink) Old 05-07-2014, 01:38 AM Thread Starter
Junior Member
 
Join Date: May 2012
Posts: 11
Default

Its just a k&n rectangle filter inside the factory air box, not a side mount. I no longer have the original filter.

Also, when I bought the bike it already had the slip ons, which was the only mod. Dont believe its been tuned. I would simply get a tuner, but i dont want to dump fuel etc if that isnt the root cause
06hammering is offline  
post #10 of 15 (permalink) Old 05-07-2014, 03:56 AM
Lifetime Premium
 
LILMAGS500's Avatar
 
Join Date: Apr 2013
Location: Peoples Republic of Massachusetts
Posts: 9,684
Garage
Default

Your engine will run richer when its cold , lean doesn't sound like your issue ......

2014 Cross Country
2014 XC , Lloyds A/F , Timing Wheel +4 , PCV , Miller Mufflers , 1/4 Turn Throttle Ring , Dyno Tuned by KMC Powersports 98HP 113 TQ
LILMAGS500 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Victory Forums - Victory Motorcycle Forum 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










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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