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Fuel line

  • Dennis D
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Fuel line was created by Dennis D

Is there a source for the molded fuel line for the early enduros?
I know originals are hard to find, but was wondering if anyone
was redoing them. Thanks, D
24 Jan 2021 09:58 #1

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Replied by MarkT on topic Fuel line

Which year/model are you asking about? Just curious because I don't recall molded fuel lines...
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
24 Jan 2021 10:03 #2

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  • Dennis D
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Replied by Dennis D on topic Fuel line

The older bikes had a 90 molded into them where they attached to the petcock.
There were several different part numbers for them, but IIRC the difference was
in the length. Later I believed they sold under a more universal number and a
person could cut it to the proper length. To keep the straight line from kinking
I have put a small spring inside the hose at the petcock connection. Just looking
for a molded one for the HT I have. D
24 Jan 2021 10:50 #3

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Replied by MarkT on topic Fuel line

I know how the lines are drawn in the parts book... nice 90 degree bend... I just don't remember the bikes actually coming with a molded line. I also never had kinking issues just using fuel line.

Here's pictures from the HT1 service manual... line doesn't look formed to me?









.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
Last edit: 24 Jan 2021 11:16 by MarkT.
24 Jan 2021 11:15 #4

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  • Dennis D
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Replied by Dennis D on topic Fuel line

Agree looking at that picture. This is the second HT I have
owned. First one had a molded fuel line on it.
24 Jan 2021 11:28 #5

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Replied by MarkT on topic Fuel line

I know I really didn't answer your question... Now that you mention it I suspect some models may have had a molded line like the early 250 with the fitting on the back side of the petcock.

I can't recall ever seeing a molded fuel line... then or reproductions now... when I was a kid I tended to pay attention to details like that. Mostly worked on the 175 or smaller bikes as that's what we had.

If the molded lines exist hopefully someone will chime in and point you in the right direction.

:Buds
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
24 Jan 2021 11:33 #6

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Replied by MarkT on topic Fuel line

"24311" is the part number code for fuel line... searched ebay for pictures and found a 439-24311 for a mid-70's LB80 that has a 90 degree bend molded in...

Number supersedes to this on Partzilla... might work if you need a molded line?

www.partzilla.com/product/yamaha/439-24311-00-00
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
24 Jan 2021 11:45 #7

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Replied by Schu on topic Fuel line

I'm pretty sure the original fuel lines on my JTs had a molded bend at the carb connection. It is difficult to avoid a kink when you try to use a straight hose. You can see the shape in the line I am holding in front of the camera in this photo, and you can see the carb connection next to it where the line is almost kinked. I still have to route the line up thru the rubber base gasket at the air filter and it wants to kink bad when I do that.

Schu

CT175B, CT175C, JT1' JT2' DT360A, GT80B, DT100B, DT125B,
DT175B, DT175C, DT250B, DT400B, Z50, SCR950

Someday, you'll own some Yamahas
Last edit: 24 Jan 2021 12:25 by Schu.
24 Jan 2021 12:24 #8

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  • Dennis D
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Replied by Dennis D on topic Fuel line

A small spring may help. Think ink pen size. May need to be a tad
larger to stay in place. Hardware stores usually have a pretty good
assortment. D
24 Jan 2021 12:28 #9

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Replied by Dennis D on topic Fuel line

I'll check into it, thanks, D
24 Jan 2021 12:30 #10

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