2003 carbon fouled spark plugs - 600RR.net
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 05-24-2014, 07:43 AM Thread Starter
Knee Dragger
 
yankee99's Avatar
 
Join Date: May 2009
Location: Pattaya, Thailand
Posts: 210
Thanks: 5
Thanked 5 Times in 5 Posts
Feedback Score: 1 reviews
2003 carbon fouled spark plugs

All plugs dry carbon fouled after only 200 miles spark looks good but exhaust is also black with soot. Spark looks good with a good plug. Filter is good. No fault codes. So i am thinking a problem in the fuel system the question is where to look?

Also the bike was garaged for at least a year before i purchased it.








yankee99 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 05-24-2014, 11:45 AM
Training Wheel Hero
 
Join Date: Oct 2003
Posts: 9
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Is there a power commander or anything that would affect fueling?

Since it is a rich condition and the bike sat for an extended time I would lean towards dirty injectors. Either pull the injectors and clean them properly or run some injector cleaner.

Since you have the plugs out it wouldn't hurt to do a compression and/or leak down test.
rushr is offline  
post #3 of 8 (permalink) Old 05-24-2014, 12:13 PM Thread Starter
Knee Dragger
 
yankee99's Avatar
 
Join Date: May 2009
Location: Pattaya, Thailand
Posts: 210
Thanks: 5
Thanked 5 Times in 5 Posts
Feedback Score: 1 reviews
Would all the injectors clog causing all plugs to foul? Also its a dry fouling not wet if that makes a difference.

I guess i should just pull the TB tomorrow and clean everything the best i can.
yankee99 is offline  
 
post #4 of 8 (permalink) Old 05-24-2014, 12:54 PM
Training Wheel Hero
 
Join Date: Oct 2003
Posts: 9
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
If the fuel went bad and varnished the injectors they could be leaking or reacting slow and over fueling. The tips could be varnished and affecting the spray pattern/atomization.
rushr is offline  
post #5 of 8 (permalink) Old 05-24-2014, 08:16 PM Thread Starter
Knee Dragger
 
yankee99's Avatar
 
Join Date: May 2009
Location: Pattaya, Thailand
Posts: 210
Thanks: 5
Thanked 5 Times in 5 Posts
Feedback Score: 1 reviews
Just curious wouldnt a clogged injector cause a lean condition? also what are the odds of all the injectors having the same issue?
yankee99 is offline  
post #6 of 8 (permalink) Old 05-24-2014, 09:36 PM Thread Starter
Knee Dragger
 
yankee99's Avatar
 
Join Date: May 2009
Location: Pattaya, Thailand
Posts: 210
Thanks: 5
Thanked 5 Times in 5 Posts
Feedback Score: 1 reviews
Here are some pics of the throttle body. Looks like it was removed before as the clamps were loose and one didnt even have a nut on it...

Can this be cleaned and reused?






Last edited by yankee99; 05-24-2014 at 09:41 PM.
yankee99 is offline  
post #7 of 8 (permalink) Old 05-25-2014, 11:49 AM
Training Wheel Hero
 
Join Date: Oct 2003
Posts: 9
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
What do the injector tips look like? Pull the injectors out and clean the throttle body. Soak the injector tips and get them clean. Make up a way to test and internally clean each one. Several videos out there on injector cleaning
rushr is offline  
The Following User Says Thank You to rushr For This Useful Post:
yankee99 (05-25-2014)
post #8 of 8 (permalink) Old 05-25-2014, 12:06 PM Thread Starter
Knee Dragger
 
yankee99's Avatar
 
Join Date: May 2009
Location: Pattaya, Thailand
Posts: 210
Thanks: 5
Thanked 5 Times in 5 Posts
Feedback Score: 1 reviews
Gonna try this in the morning


yankee99 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net 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
Show Printable Version Show Printable Version
Email this Page Email this Page



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