Fuel Line quick question

newbikekiller
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09 Mar 2006 21:27 #29754 by newbikekiller

Fuel Line quick question was created by newbikekiller

What size fuel line is a stock 1983 KZ650 CSR supposed to have?

The current set up is a real mess, and I can't determine how to determine TUBE,7.5X12.5X225 from buykawasaki.com's parts diagrams.

I want to get the stuff that I don't have to clamp on, any suggestions?

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Sandy
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Fly High,Tony

09 Mar 2006 21:32 #29756 by Sandy

Replied by Sandy on topic Fuel Line quick question

Not a definate answer,but it's usually 1/4 inch or 5/16 for the fuel lines.Don't quote Me,but I've noticed that one SOME bikes,if there's only 1 line going to the carbs,it's more than likely 5/16...2 lines might be the smaller size line(1/4).
I'm guessing 1/4 I.D. for Your bike...

1977 KZ1000 A-1

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newbikekiller
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09 Mar 2006 22:02 #29766 by newbikekiller

Replied by newbikekiller on topic Fuel Line quick question

Thanks for the response, Sandy
There is only one line going to my carbs
I can always just grab a length of both if no one else has any suggestions.
I don't have the bike on hand but need the line for some riding tom. So if anybody knows exactly it might just save my day!

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GargantuChet
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09 Mar 2006 22:07 #29769 by GargantuChet

Replied by GargantuChet on topic Fuel Line quick question

Just bought some for my '78 650, which was 5/16" line. I really don't think that 1/4" would have fit the connector between the carbs, as the 5/16" took a little wiggling.

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newbikekiller
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09 Mar 2006 22:11 #29770 by newbikekiller

Replied by newbikekiller on topic Fuel Line quick question

A little wiggling is what I want!
Thanks and goodnight!

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Sandy
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Fly High,Tony

09 Mar 2006 22:15 #29771 by Sandy

Replied by Sandy on topic Fuel Line quick question

Only 1 line?...oh...well then I would THINK that it's going to be 5/16".
You COULD always(like You said)...take a piece with You,but cut off the end where it's been flared out from the fitting,to get an acurate measurement.

Well...DUHH...I just reread Your post and grabbed My digital calipers...opened them up to 7.5mm(I.D.of the fuel line)and measured that opening...LOL...it is 5/16 I.D.:lol:

1977 KZ1000 A-1

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newbikekiller
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09 Mar 2006 22:28 #29774 by newbikekiller

Replied by newbikekiller on topic Fuel Line quick question

Great
I have two votes for 5/16" from top tier KZ dogs so thats more than enough for me.

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KevZ
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10 Mar 2006 03:52 #29791 by KevZ

Replied by KevZ on topic Fuel Line quick question

Killer,

The specs you listed for the fuel line are: I.D., O.D., length. They are all listed in metric sizes. 7.5 mm Inside Diameter (nominal 5/15"), 12.5 Outside Diameter (nominal 1/2"), 225 (8 7/8").

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wiredgeorge
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10 Mar 2006 05:11 #29805 by wiredgeorge

Replied by wiredgeorge on topic Fuel Line quick question

7.5mm ID line is 5/16". 1/4" line WILL fit on the fuel inlet barb; just a tighter fit. I use 1/4" on my test bikes because I don't use clamps but would use 5/16" on a bike I was riding and wanted to put clamps on.

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!

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KevZ
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10 Mar 2006 09:59 #29870 by KevZ

Replied by KevZ on topic Fuel Line quick question

Fat-fingered the keyboard with the 5/15". Thanks, WG!

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tnt79z28
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10 Mar 2006 17:52 #29974 by tnt79z28

Replied by tnt79z28 on topic Fuel Line quick question

newbikekiller wrote:

What size fuel line is a stock 1983 KZ650 CSR supposed to have?

The current set up is a real mess, and I can't determine how to determine TUBE,7.5X12.5X225 from buykawasaki.com's parts diagrams.

I want to get the stuff that I don't have to clamp on, any suggestions?

Hello to all
To covert Millimeters to Inches :
multiply the mm x .03937 Example 7.5mm = .29527 Inches.
12.5mm = .492125 Inches 225mm = 8.85825 Inches
Hope this helps... Don (tnt79z28)

ps, here's a link to a conversion table that gives just about any formula you would ever want and some you could care less about :-)

carrlane.com/TrigBook/TrigBook6.cfm

Post edited by: tnt79z28, at: 2006/03/10 21:07

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GargantuChet
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11 Mar 2006 04:47 #30053 by GargantuChet

Replied by GargantuChet on topic Fuel Line quick question

Bah. Go to Google, type "5/16 inches in mm". Problem solved. If you need conversion numbers, just convert one unit: "1 inch in mm".

Have fun!

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