Chattering carb piston valve? - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 11-19-2012, 10:13 PM Thread Starter
Squid
 
cejatag1's Avatar
 
Join Date: Aug 2012
Location: Selma, Cali
Motorcycle: 98' Suzuki GSXR 600 SRAD
Posts: 5
Exclamation Chattering carb piston valve?

since the day i bought my bike, it has always ran a little rough. Most of the time it runs lean and i'll get the occasional lean pop, but the biggest issue has been that while coming to a stop the bike will sometime die out or sputter and drop to very low rpms (to wich i have to blip to keep the bike on). It will normally idle pretty well @ about 1100-1200 rpms. If I try to raise the idle i the rpms begin to hang at around 3k.

... So finally as i was riding home the bike just gave out like it ran out of gas so i decided it was finally time to clean the carbs out. I found nothing too dirty aside from a bit of rust powder... finally after cleaning them i re-installed them and decided to start my bike up without the airbox. Strangely, the piston valve on the carb closest to the throttle cable (#1? i believe ) was chattering and kept shaking as the bike was running. I took them off again, checked everything looked fine, any ideas of what may be going on?

my bike: 98' SRAD 600, Rs-3 slip on Yoshi pipe, stock air filter, not sure if it has been jetted but the jet sizes are 132 on the outers & 130 on the inner carbs.
cejatag1 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 11-20-2012, 01:32 AM
Lifetime Premium
 
Join Date: Jun 2012
Location: london, UK
Motorcycle: 98 600 srad,97 aprilia chesterfield rs125
Posts: 2,049
Re: Chattering carb piston valve?

Time for ccmhunt ...
dj_smurph is offline  
post #3 of 8 (permalink) Old 11-20-2012, 03:43 AM
Club Racer
 
Join Date: Sep 2003
Posts: 2,402
Re: Chattering carb piston valve?

Start by doing a carb sync
LynnM is offline  
post #4 of 8 (permalink) Old 11-20-2012, 05:08 AM
Superbike
 
ccmhunt's Avatar
 
Join Date: Jan 2009
Location: Lawton, Ok
Motorcycle: 96 GSXR750 (parts), ZX7/9RR F-USA AMA SBK, 96 ZX7RR STREET, 96 WSBK ECKL ZX7RR
Posts: 11,174
Re: Chattering carb piston valve?

And, if it's been like that long enough, you may have considerable wear on the slide. After a sync, swap slide with another cylinder. Or get with me, I have tons....
ccmhunt is online now  
post #5 of 8 (permalink) Old 11-20-2012, 05:07 PM Thread Starter
Squid
 
cejatag1's Avatar
 
Join Date: Aug 2012
Location: Selma, Cali
Motorcycle: 98' Suzuki GSXR 600 SRAD
Posts: 5
Re: Chattering carb piston valve?

i may have to get one off you ccm. Ill pm you. I bench synced the carbs a but its still running really crappy, and rpms are hanging again.. there goes my only vehicle again
cejatag1 is offline  
post #6 of 8 (permalink) Old 11-21-2012, 10:06 AM
Lifetime Premium
 
Join Date: Jun 2012
Location: london, UK
Motorcycle: 98 600 srad,97 aprilia chesterfield rs125
Posts: 2,049
Re: Chattering carb piston valve?

Or send the whole carbs to ccmhunt and let him work his magic. He really is worth it
dj_smurph is offline  
post #7 of 8 (permalink) Old 11-21-2012, 11:30 AM
Superbike
 
ccmhunt's Avatar
 
Join Date: Jan 2009
Location: Lawton, Ok
Motorcycle: 96 GSXR750 (parts), ZX7/9RR F-USA AMA SBK, 96 ZX7RR STREET, 96 WSBK ECKL ZX7RR
Posts: 11,174
Re: Chattering carb piston valve?

Why thank you sir
ccmhunt is online now  
post #8 of 8 (permalink) Old 11-21-2012, 05:23 PM
Lifetime Premium
 
Armi's Avatar
 
Join Date: Aug 2009
Location: london,uk
Motorcycle: gsxr 750 srad with a few mods thanks to the members on this site.See signature.
Posts: 9,700
Re: Chattering carb piston valve?

I'm suprised we have to keep saying this....It should be common knowledge now!!!
Armi is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Suzuki GSX-R Motorcycle Forums Gixxer.com 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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