Testing the Fuel Petcock - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 06-20-2012, 12:52 AM Thread Starter
Amateur
 
Join Date: Jan 2010
Motorcycle: 1990 GSXR 1100
Posts: 970
Testing the Fuel Petcock

Hi guys,

I just want to hear your methods or even get a solid write up(maybe make a sticky) on testing the fuel petcock?? How to test, what to look for? etc.

I'm rebuilding my carbs and everything and would hate to overlook this part of the fuel system.

Much appreciated.
ANDRASTA is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 06-20-2012, 06:13 AM
Lifetime Premium
 
tas1100g's Avatar
 
Join Date: Aug 2010
Location: New Hampshire
Motorcycle: 1986 GSX-R1100 & 1979 GS 850GN
Posts: 517
Re: Testing the Fuel Petcock

Pretty basic testing. Put the lever on Pri and fuel should flow out. Set the lever on reserve and fuel should not flow out until you suck on the vacuum nipple. Set the lever in the normal on position and again fuel should not flow out until you suck on the vacuum nipple.

I supposed it would depend on which type of pet cock you have too by this is how it works on mine.
tas1100g is offline  
post #3 of 10 (permalink) Old 06-21-2012, 01:51 PM
Squid
 
Join Date: Feb 2003
Posts: 15
Re: Testing the Fuel Petcock

the brand new (purchased from suzuki) petcock on my 88 gsxr 750 dribbles fuel even when the vacuum is unplugged. when i pulled the tank to adjust valves i had a big puddle of gas in my garage last week after it sat overnite.

next winter i am going to re-do the fuel lines and add two in-line plastic shutoff valves for lawn tractors to assure flow is off. i bought the two little in-line valves for 10 bucks including shipping--which would have saved me over 150$ if i had just put them in and kept the older petcock. oh well, live and learn.

replacing the o-rings on the floats ultimately solved my fuel leakage problem during riding season, i just want the fuel flow to stop entirely to prevent any accidents during winter storage.
jtolo3 is offline  
post #4 of 10 (permalink) Old 06-21-2012, 03:26 PM
Lifetime Premium
 
Join Date: Jan 2007
Location: Tulsa, OK
Motorcycle: I don't ride anything. Who has the time? Plus, everything I own is in pieces.
Posts: 4,610
Re: Testing the Fuel Petcock

During winter storage, you should just completely drain the tank and all of the carb float bowls anyway.

JR
javadog is online now  
post #5 of 10 (permalink) Old 06-22-2012, 09:59 AM
Wag
Constantly in trouble now
 
Wag's Avatar
 
Join Date: Dec 2005
Location: Rio Rancho, NM
Motorcycle: '06 Gixxer 1000, Hayabusa
Posts: 16,196
Re: Testing the Fuel Petcock

Wag is offline  
post #6 of 10 (permalink) Old 06-23-2012, 01:30 PM
Lifetime Premium
 
Join Date: Jul 2011
Location: Massachusetts
Motorcycle: 2008 Suzuki DRZ SM, 1987 YSR 50, SDG pitbike, kids dirtbikes
Posts: 831
Re: Testing the Fuel Petcock

For winter storage I add fuel stabilizer and 100% race fuel. The race fuel has no ethanol so you don't get any water in fuel like the ethanol based gas.
wicked86gsxr is offline  
post #7 of 10 (permalink) Old 11-16-2012, 02:00 PM
Novice
 
Join Date: Jan 2011
Location: christchurch
Motorcycle: gsxr 1000 k9,rxv 550
Posts: 42
Quote:
Originally Posted by tas1100g View Post
Pretty basic testing. Put the lever on Pri and fuel should flow out. Set the lever on reserve and fuel should not flow out until you suck on the vacuum nipple. Set the lever in the normal on position and again fuel should not flow out until you suck on the vacuum nipple.

I supposed it would depend on which type of pet cock you have too by this is how it works on mine.
Hi so what carb does the vacuum nipple plug on to?


Sent from my iPhone using MO Free
pontaic is offline  
post #8 of 10 (permalink) Old 11-16-2012, 02:29 PM
Expert
 
Intguy's Avatar
 
Join Date: Feb 2010
Location: Ontario, Canada
Motorcycle: 1997 ZX11 Ninja
Posts: 2,031
Re: Testing the Fuel Petcock

Quote:
Originally Posted by pontaic View Post
Hi so what carb does the vacuum nipple plug on to?

It's usually #3, but they are all the same.



cheers
Intguy is offline  
post #9 of 10 (permalink) Old 11-17-2012, 06:09 AM
Lifetime Premium
 
Join Date: Aug 2007
Location: Miami FL
Motorcycle: 86 7/11 86 1100 87 1100 89 750 95 xr650l 86 ATC 125m
Posts: 3,174
Re: Testing the Fuel Petcock

Quote:
Originally Posted by Wag View Post
W....T.....F is that?!
rodriguez is offline  
post #10 of 10 (permalink) Old 11-17-2012, 09:38 AM
Wag
Constantly in trouble now
 
Wag's Avatar
 
Join Date: Dec 2005
Location: Rio Rancho, NM
Motorcycle: '06 Gixxer 1000, Hayabusa
Posts: 16,196
Re: Testing the Fuel Petcock

Quote:
Originally Posted by rodriguez View Post
W....T.....F is that?!
Some jokes should not have to be explained..........

--Wag--
Wag 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