'87 GSXR 750 fuel line routes - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 08-03-2018, 04:57 AM Thread Starter
Track Day Winner
 
Join Date: Jul 2018
Posts: 21
Garage
'87 GSXR 750 fuel line routes

Hey everyone. First of all, I've posted a couple different questions and topics, and everyone has been awesome with the help. So thank you to everyone!!
I have just gotten my carbs back from being cleaned and rebuilt, and I am going to hook all the gas lines to the carbs and fuel tank. They were never hooked up when I got the bike and I am in the process of restoring it. So it looks like there are 3 lines that come off the carbs, 2 lines from the petcock, a metal tube coming from the tank about an inch long, and a line that already had a small rubber tube on it when I got it. I already have all the new fuel lines for everything, now I just need to connect them and want to make sure I do it right. I have some pics so you can see what I'm talking about. So in the picture where do 1 and 2 go? Where does the line on number 3 go? Also there is a gold and a silver place on the petcock where lines go, there is a little 1 inch tube on the gas tank itself, and the rubber hose on the gas tank. I think I have an idea where some of the lines go, just would be nice for someone to double check me. Also, which line do I put the fuel filter on?
Attached Thumbnails
Click image for larger version

Name:	InkedResized_20180803_051956_2513_LI (2).jpg
Views:	16
Size:	506.9 KB
ID:	551670   Click image for larger version

Name:	Resized_20180803_052303_5300.jpeg
Views:	12
Size:	510.6 KB
ID:	551672  

Last edited by loungefrog11; 08-03-2018 at 04:58 AM. Reason: Added question
loungefrog11 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 08-03-2018, 06:14 AM
Lifetime Premium
 
Join Date: Feb 2008
Motorcycle: GSX-R750H, Ducati 1198 SP
Posts: 53
Re: '87 GSXR 750 fuel line routes

#1 and #2 are for the air vent pipes that originally routed along the airbox, (1 on each side) down and back toward the swingarm pivot to open air.

#3 is the main fuel line going from the fuel cock to the carbs.

What's missing is #4 (fuel cock vacuum line) which connects to the fitting above #3 (on the same carb) up to the fuel cock.

Hope this makes sense.
gsx-r750h is offline  
post #3 of 5 (permalink) Old 08-03-2018, 06:39 AM Thread Starter
Track Day Winner
 
Join Date: Jul 2018
Posts: 21
Garage
Re: '87 GSXR 750 fuel line routes

Quote:
Originally Posted by gsx-r750h View Post
#1 and #2 are for the air vent pipes that originally routed along the airbox, (1 on each side) down and back toward the swingarm pivot to open air.

#3 is the main fuel line going from the fuel cock to the carbs.

What's missing is #4 (fuel cock vacuum line) which connects to the fitting above #3 (on the same carb) up to the fuel cock.

Hope this makes sense.
Ok so 1 and 2 are just air vents, gotcha. So number 3 is the main fuel line and will have the fuel filter, does that mean it connects to the silver or gold fitting on the fuel cock?(in the 2nd picture) and #4 connects to the other fitting on the fuel cock, gotcha. Lastly on the fuel tank in the other pic, there is the little 1 inch tube, and the fitting that still has an old hose connected to it, what do those go to? Thanks for your help!!
loungefrog11 is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 08-03-2018, 03:28 PM
Amateur
 
Join Date: Jul 2014
Location: San Antonio and Houston
Motorcycle: 1986 GSXR 815, 2002 Bandit 1200N
Posts: 855
Re: '87 GSXR 750 fuel line routes

Quote:
Originally Posted by loungefrog11 View Post
Ok so 1 and 2 are just air vents, gotcha. So number 3 is the main fuel line and will have the fuel filter, does that mean it connects to the silver or gold fitting on the fuel cock?(in the 2nd picture) and #4 connects to the other fitting on the fuel cock, gotcha. Lastly on the fuel tank in the other pic, there is the little 1 inch tube, and the fitting that still has an old hose connected to it, what do those go to? Thanks for your help!!
the main fuel line will connect to the silver fitting on the fuel tap. and those small tubes towards the back of the tank are for runoff that accumulates around the fuel tank cap, just simply redirects the water / gas / fluids to the bottom of the tank and to the ground. I leave mine open as I never ride in the rain or spill gas around the cap. unsure about where a tube or fitting leads to? blow some light compressed air through it and see for yourself
Gixxerider86 is offline  
post #5 of 5 (permalink) Old 08-03-2018, 07:10 PM Thread Starter
Track Day Winner
 
Join Date: Jul 2018
Posts: 21
Garage
Thanks for your help!!
loungefrog11 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










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