Author Topic: '71 CB500 fuel line routing  (Read 5092 times)

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Offline dkruitz

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'71 CB500 fuel line routing
« on: June 30, 2007, 03:29:36 PM »
I've got a project bike (my first) I picked up and the fuel lines were cut - how are they routed?  Photos would be great, otherwise, a good description should suffice.  Thanks!

Offline SteveD CB500F

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Re: '71 CB500 fuel line routing
« Reply #1 on: June 30, 2007, 03:34:05 PM »
Cut where?

There are two lines, one to each side of the carb bank.

If yours are cut after they feed through the hole on the carb rack, it's a simple run to the fuel tap.  If below, let me know and I'll post some pics (not tonite though - getting a bit late)
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Offline dkruitz

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Re: '71 CB500 fuel line routing
« Reply #2 on: June 30, 2007, 09:31:14 PM »
So it's just the two lines - are they paired up internally on a pair of carbs - sharing  a line?

Offline SteveD CB500F

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Re: '71 CB500 fuel line routing
« Reply #3 on: July 01, 2007, 07:22:18 AM »
There is a fuel "rail" that runs between the four carbs with two take offs, one between 1/2 and the other between 3/4. The two fuel lines connect there and run through a round hole in the frame (of the carb bodies) and up to the two outlets on the fuel tap.
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Offline dustyc

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Re: '71 CB500 fuel line routing
« Reply #4 on: July 01, 2007, 08:31:55 AM »


1977 CB750

Offline dustyc

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Re: '71 CB500 fuel line routing
« Reply #5 on: July 01, 2007, 08:37:59 AM »
I'll eventually return my setup to its proper state, but I just got the bike and I'm still tinkering, so I left the fuel lines long so I don't have to disconnect them to move the tank(In case you're wondering).
1977 CB750

Offline dkruitz

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Re: '71 CB500 fuel line routing
« Reply #6 on: July 01, 2007, 08:50:03 AM »
Awesome!  Thanks!  My fuel lines were cut off short and total about 4 inches long including the petcock.  I wondered if that clip was for the fuel line, but didn't want it getting in the way in case it wasn't.