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Author Topic: Size Matters  (Read 907 times)

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Offline Vintageguy

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Size Matters
« on: September 29, 2018, 05:05:59 AM »
Anyone know the correct size for fuel line for 1978 CB750F fuel line? Think it's 1/4 but not sure if it's mm's instead. Thanks.
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Offline dusterdude

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Re: Size Matters
« Reply #1 on: September 29, 2018, 05:11:22 AM »
I believe oe is 5mm,i use 1/4 inch on mine with no problems

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mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline Vintageguy

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Re: Size Matters
« Reply #2 on: September 29, 2018, 05:11:43 AM »
Many thanks
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Offline david 750f

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  • 1976 CB750F
Re: Size Matters
« Reply #3 on: September 29, 2018, 05:23:14 AM »
It’s 5.5mm. Get the OEM Honda fuel line. Fits better than the aftermarket fuel lines.
https://4into1.com/genuine-honda-black-fuel-line-5-5mm-by-the-foot/
« Last Edit: September 29, 2018, 08:06:47 AM by david 750F »
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1976 CB 750F

Offline Progas

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Re: Size Matters
« Reply #4 on: September 29, 2018, 05:51:38 AM »
He's right, 5.5 is the way to go!
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Offline 754

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Re: Size Matters
« Reply #5 on: September 29, 2018, 09:21:24 AM »
 And it's not as fat as automotive line, and can run without clamps.
 Plus it looks right.
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline PGF550F

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Re: Size Matters
« Reply #6 on: September 29, 2018, 10:53:48 AM »
I use 3/16” automotive fuel line. Fits tight without clamps and it’s easy enough to find locally. It seems to hold up well to the ethanol in our fuel too.

Can never go wrong with Honda parts though.
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Offline Vintageguy

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Re: Size Matters
« Reply #7 on: September 29, 2018, 12:57:31 PM »
Used 1/4" hose and clamps. Not Honda but at least they're clamped and not cracked like what  it came with. Feel better about it but may go with genuine Honda 5.5 down the line. Also added a fuel filter, never a bad idea. Thanks.
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Offline dusterdude

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Re: Size Matters
« Reply #8 on: September 29, 2018, 02:23:01 PM »
I use 1/4 automotive hose with no clamps,nary a problem.

Sent from my R1 HD using Tapatalk

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mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline 754

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Re: Size Matters
« Reply #9 on: September 29, 2018, 03:39:14 PM »
I am using that yellow opague line on my bike, not sure of size, fits good, pulls off easy when warm out.
 Now that things cooled off it seems stiffer. I think Honda line stays more flexi..
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Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way
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