Running Lean? - 600RR.net
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 04-16-2007, 11:33 PM Thread Starter
AMA Supersport Racer
 
JSS829's Avatar
 
Join Date: Dec 2005
Location: Austin
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Running Lean?

Ok I posted this in the maitnence section and I decided it would probably fit better in here. So anyways, I was burning the oil off my headers today after doing an oil change. I was holding the engine revs at about 5k and noticed that the headers were glowing where they meet the head. I know this happens on occasion but I didnt think that it would happen while holding at 5k rpms for about a minute. I know that high exhaust gas temps are either a product of running lean or rich(I cant remember), Im hoping this is either normal or Im running rich because I dont have the cash right now to pay for maitnence, or even a PC and tune. Anyone have any helpful insight?


Two Brothers Slip on
Harris Frame Sliders
Pilot Powers
Custom FE
Ohlins .95 Fork Springs
Ohlins Fork Valves
-1/+2 w/ oem 525 chain
Shock Racing turn signals
EBC HH Sinter Pads
JSS829 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 04-16-2007, 11:41 PM
Training Wheel Hero
 
stryker1080's Avatar
 
Join Date: Sep 2006
Location: Edmonton, AB
Posts: 83
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
If its running lean, it will run hot... Hard to tell, revving the bike at 5k standing completely still might make it that hot normally....
stryker1080 is offline  
post #3 of 7 (permalink) Old 04-16-2007, 11:43 PM
 
Join Date: Jun 2006
Posts: 1,432
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Do you just have a slip on or a full system? High heat generated by your motor is a symptom of running lean, I think...How does your exhaust pipe look? Is it black and sooty? You can also try and rev your motor after its warm and put your hand by the exhaust and feel the air...If you get cold bursts then it's running rich (I know that works with 2 strokes, I assume 4's are the same)...Someone double check me..

I'm in the painstaking process of jetting my superhawk and I've been reading so much stuff about carbs and running rich and lean, vacuum, venturi...blah, blah..And all from different sources, so I'm trying to sort out which stuff is true and works and doesn't...
juni5 is offline  
 
post #4 of 7 (permalink) Old 04-17-2007, 12:12 PM Thread Starter
AMA Supersport Racer
 
JSS829's Avatar
 
Join Date: Dec 2005
Location: Austin
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
I just have a slip on, and I have never noticed it do this until now. The bike has been sitting for about 2 months now, just had new plugs put in and a K&N filter. Since I havent actually ridden it with the K&N do you think this could be causing a lean fuel mixture, maybe the ECU hasn't completely adjusted to the extra air yet?


Two Brothers Slip on
Harris Frame Sliders
Pilot Powers
Custom FE
Ohlins .95 Fork Springs
Ohlins Fork Valves
-1/+2 w/ oem 525 chain
Shock Racing turn signals
EBC HH Sinter Pads
JSS829 is offline  
post #5 of 7 (permalink) Old 04-17-2007, 12:46 PM
AMA Supersport Racer
 
Join Date: Jan 2007
Posts: 523
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
if it is running lean the exhaust will be hotter check the tail pipe what color is it? how is the engine temp? i know if you put headers on a car they will get red hot but dont know if its normal on a bike.
thooper41 is offline  
post #6 of 7 (permalink) Old 04-17-2007, 01:03 PM Thread Starter
AMA Supersport Racer
 
JSS829's Avatar
 
Join Date: Dec 2005
Location: Austin
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
the engine temps are normal, it was sitting at about 198, the tail pipe has a regular amount of black carbon in it, it doesnt look like anything out of the ordinary.


Two Brothers Slip on
Harris Frame Sliders
Pilot Powers
Custom FE
Ohlins .95 Fork Springs
Ohlins Fork Valves
-1/+2 w/ oem 525 chain
Shock Racing turn signals
EBC HH Sinter Pads
JSS829 is offline  
post #7 of 7 (permalink) Old 04-17-2007, 01:09 PM
cvlighthouse
Guest
 
Posts: n/a
If your really concerned, pull the plugs and check them..
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