Fuel Hose Diameter - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 11 Old 03-26-2020, 09:27 AM Thread Starter
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Fuel Hose Diameter

What is the diameter of the fuel hose going from the petcock to the carb?

2003 KLR650.... With all the bells and whistles
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post #2 of 11 Old 03-26-2020, 09:46 AM
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Fuel line is 1/4.

.
martydi, melbakid and MTKKLR like this.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #3 of 11 Old 03-26-2020, 10:54 AM
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I wish that we could purchase the correct metric sized fuel, vacuum & vents hoses in 25ft Bulk lengths, instead of inch sized approximately 'good enough'. Even Canada must have the same problem if klr4evr is suggesting 1/4".

The oem 6mm fuel hose is a better fit, but those pre-cut oem hoses are Pricey!

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post #4 of 11 Old 03-26-2020, 02:25 PM
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1/4 ID (Inside Diameter). Some 1/4 ID after market hoses are 3/8 OD (Outside Diameter) and some are 7/16 OD.

The nicer stuff IMHO is the 7/16 OD and I personally prefer Tygon hose material ... Very pliable and tolerant of bends etc ...

I have a hard time finding the 7/16 stuff but you can get it from Motion Pro at a greatly inflated price ... Or hunt around a bit ... I also like clear so I can see the fuel but I guess I dont really know why ... But I like seeing it none the less ...
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post #5 of 11 Old 03-26-2020, 05:57 PM
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Quote:
Originally Posted by pdwestman View Post
I wish that we could purchase the correct metric sized fuel, vacuum & vents hoses in 25ft Bulk lengths, instead of inch sized approximately 'good enough'. Even Canada must have the same problem if klr4evr is suggesting 1/4".

The oem 6mm fuel hose is a better fit, but those pre-cut oem hoses are Pricey!

Ya, it's the same in Canada as the USA. Although we are metric not all things are truly metric.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #6 of 11 Old 03-26-2020, 08:14 PM
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But MrZappo, I don't think they can make Clear Tygon hoses can they?

And the clear stuff they make nowadays either gets pretty stiff pretty quickly or it nearly melts, it seems to me.

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post #7 of 11 Old 03-26-2020, 08:24 PM Thread Starter
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Quote:
Originally Posted by pdwestman View Post
But MrZappo, I don't think they can make Clear Tygon hoses can they?

And the clear stuff they make nowadays either gets pretty stiff pretty quickly or it nearly melts, it seems to me.
Haha don't tell me that I just ordered a clear one because I like to watch the gas move through the line for some reason

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post #8 of 11 Old 03-26-2020, 08:40 PM
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Quote:
Originally Posted by pdwestman View Post
But MrZappo, I don't think they can make Clear Tygon hoses can they?

And the clear stuff they make nowadays either gets pretty stiff pretty quickly or it nearly melts, it seems to me.


Well, I am a few beers in right now ... But, I do have some hose (got it from motion pro via amazon) and it is Tygon. And it is clear ... And it is 1/4 ID and 7/16 OD ... And it is real nice and pliable ... So far ...


Worked really great for me ... It seems great ... Time will tell ... Ill report back !!!
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post #9 of 11 Old 03-27-2020, 10:01 AM
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Hummm,
Western Power Sports catalog shows Motion Pro Black & Gray Tygon fuel line.

Tucker Rocky catalog shows Motion Pro Black, Gray & Clear "Premium Fuel Line".

The TR "Premium" 1/4" Clear 3ft hose is $23.99 with Black & Gary being less expensive. The WPS Tygon 1/4" Black & Gray 3 ft hoses lists at $23.99 each.

The TR catalog shows pics of their "Premium" 25 ft boxes. The WPS catalog does not show any pics of their Motion Pro 25 ft boxes.

Might be the same stuff, I guess.

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post #10 of 11 Old 03-27-2020, 10:03 AM
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Quote:
Originally Posted by pdwestman View Post
I wish that we could purchase the correct metric sized fuel, vacuum & vents hoses in 25ft Bulk lengths, instead of inch sized approximately 'good enough'. Even Canada must have the same problem if klr4evr is suggesting 1/4".

The oem 6mm fuel hose is a better fit, but those pre-cut oem hoses are Pricey!
Look on Amazon. I ordered bulk metric hose when I replaced all the old vacuum hose on my 88 Goldwing. And there is a lot of hose on that bike!

When you do your search, you need to know the mm size of the hose first. You should be able to find that on a parts fiche. At least I was able to on a Honda parts fiche.
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