Topic: 5.5 mm fuel line

[bryanj]

I do the same Mark but gently tap in a centre punch first to take out the "shrinkage" from original fit

[HondaMan]

I do the same Mark but gently tap in a centre punch first to take out the "shrinkage" from original fit

That's a smarter idea! I think I'll try that on my old one.

[jlh3rd]

The last bulk 5.5mm fuel line I got from Honda seemed to have a larger O.D. than the original.

Yep, it is: it also has a dull red stripe on it, which Honda said indicates it is 'ethanol-compliant' (?) hose. It's OD is about 1mm bigger than the old 1970s stuff, but still manages to fit through the holes in the carb racks OK.

FWIW

original mid 70's fuel line and overflow lines were like a dark ash grey (almost black) with a continuous red stripe. Individual lines were available back then, color code "4". No part # for bulk purchase. It appears that style disappeared around the late 70's, and became bulk purchase only.
Current bulk Honda , at least as shown by CMS, is black with red lettering...or just black from other sources it seems., color code "6".
Color chart on CMS, my original Honda parts book doesn't have that, but the lines on my '75 have the red stripe.
Was there ethanol fuel in the 70's ?

[denward17]

The last bulk 5.5mm fuel line I got from Honda seemed to have a larger O.D. than the original.

Yep, it is: it also has a dull red stripe on it, which Honda said indicates it is 'ethanol-compliant' (?) hose. It's OD is about 1mm bigger than the old 1970s stuff, but still manages to fit through the holes in the carb racks OK.

FWIW

original mid 70's fuel line and overflow lines were like a dark ash grey (almost black) with a continuous red stripe. Individual lines were available back then, color code "4". No part # for bulk purchase. It appears that style disappeared around the late 70's, and became bulk purchase only.
Current bulk Honda , at least as shown by CMS, is black with red lettering...or just black from other sources it seems., color code "6".
Color chart on CMS, my original Honda parts book doesn't have that, but the lines on my '75 have the red stripe.
Was there ethanol fuel in the 70's ?

Probably different in each state, but IIR, it was late 90's in NC.

[jlh3rd]

yeah, In Louisiana, all I remember seeing was the phase out of lead.

[Don R]

  I'm just wondering if anyone got smarter since the removal of lead from the fuel? I seem to remember that was the reason. Sorry, off topic. 
  I'll open the fuel line today and check for markings, OD, stripes and color.

[Don R]

  Here is the hose, I guess it's Tariff phobia that got me to spend $86 on fuel line. The OD matches the spring clamps, there is no stripe except the gray lettering. OCP parts warehouse.