Author Topic: cb550k fuel line (Read 2285 times)

noose74 · « **on:** November 24, 2008, 10:33:12 AM »

i recently installed a new custom tank and petcock from and earlier CB...my question is how do i run the fuel lines to the carb from the petcock? do i run 1 fuel line from the reserve to the carb and one from the main line to the carb? do i need a Y fitting?

SteveD CB500F · « **Reply #1 on:** November 24, 2008, 10:36:19 AM »

Does your petcock have two outlets? (Main and Reserve?)

noose74 · « **Reply #2 on:** November 24, 2008, 10:41:34 AM »

yes, my petcock has 2 outlets...

SteveD CB500F · « **Reply #3 on:** November 24, 2008, 10:50:09 AM »

OK. So let's assume that these are main and reserve.

The 550 carbs have two pipe connections (the original petcock only had one outlet so a t-piece was required), so connect one pipe to each. The connections should be between 1/2 and 3/4

* Of course, the UK carbs might have been completely different so the above is all a load of b*****ks !!

noose74 · « **Reply #4 on:** November 24, 2008, 10:54:08 AM »

so i just run the main to the one side of the carbs and the reserve to the other side of the carb?

SteveD CB500F · « **Reply #5 on:** November 24, 2008, 11:03:32 AM »

Should work. The two connections are to a single feed that runs right through the carbs.

TwoTired · « **Reply #6 on:** November 24, 2008, 11:19:29 AM »

The two outlet petcocks are parallel feed. Connect one to the left fuel inlet to the carbs, and the other to the right inlet.

Cheers,

noose74 · « **Reply #7 on:** November 24, 2008, 11:50:41 AM »

the petcock is from a 74 cb 550 so your saying that petcock is parellel feed?

TwoTired · « **Reply #8 on:** November 24, 2008, 12:01:39 PM »

Quote from: lanusse74 on November 24, 2008, 11:50:41 AM

the petcock is from a 74 cb 550 so your saying that petcock is parellel feed?

Yes. But, I spell parallel differently.

noose74 · « **Reply #9 on:** November 24, 2008, 12:04:02 PM »

thanks!!

SteveD CB500F · « **Reply #10 on:** November 24, 2008, 01:37:51 PM »

Quote from: TwoTired on November 24, 2008, 12:01:39 PM

Yes. But, I spell parallel differently.

Pah! At least I went along with "petcock"

Over here that would be the dog's dick!

We call it a fuel tap, which perfectly describes the device....

TwoTired · « **Reply #11 on:** November 24, 2008, 02:00:23 PM »

Quote from: SteveD CB500F on November 24, 2008, 01:37:51 PM

Quote from: TwoTired on November 24, 2008, 12:01:39 PM
Yes. But, I spell parallel differently.

Pah! At least I went along with "petcock" Over here that would be the dog's dick!

We call it a fuel tap, which perfectly describes the device....

Right. Do you wear boots? Or, close them on your jam jar? Did your women stop wearing bonnets 'cause they kept getting confused with an auto's anatomy?

dn4911 · « **Reply #12 on:** November 24, 2008, 04:38:39 PM »

Related questions:

What kind of Pet?

No, seriously, 2 questions:

1. Assume you have 1/2 tank of gas. Should fuel flow out of both of the pitcock outlets? Doesn't matter if it is in reserve or regular. Fuel flows out both outlets.

2. I have a small inline filter on one of the fuel lines. Is that original? seems silly to have a filter in that location downstream of the pitcock filter.

TwoTired · « **Reply #13 on:** November 24, 2008, 05:12:11 PM »

Quote from: dn4911 on November 24, 2008, 04:38:39 PM

1. Assume you have 1/2 tank of gas. Should fuel flow out of both of the pitcock outlets? Doesn't matter if it is in reserve or regular. Fuel flows out both outlets.

Yes. But, if you are watching it, gravity will make it look like the first exit from the log dominates. But, once flow stops at the first (from a filled pipe) the second one will flow as the first.

Quote from: dn4911 on November 24, 2008, 04:38:39 PM

2. I have a small inline filter on one of the fuel lines. Is that original? seems silly to have a filter in that location downstream of the pitcock filter.

The stock ones have a filter in or on top of the petcock. (depends on model) No in-lines. I'm one of those that think the stock filters in proper working order are all you need. Others disagree, but can't explain the physics of needing two (or more) filters for the fuel. However, for whatever their reasons, they seem to be happier people with the arrangement.

Cheers,

bryanj · « **Reply #14 on:** November 24, 2008, 08:34:58 PM »

OK if we id gettin antzi

Wristpin= steel screw in joint between arm and hand

cotter pin is what holds pushbike pedals on

petcock is private parts of whatever pet you got

Tripple trees is just under half of Sevenoaks

Blinkers is what horses wear

Gas is what comes out of other end of horse

Ground is what you stand on

As to parrallel its the way you have to park over here to pass youre driving test

SteveD CB500F · « **Reply #15 on:** November 25, 2008, 04:30:18 AM »

Good job test passing doesn't rely on spelling then Bryan...

bryanj · « **Reply #16 on:** November 25, 2008, 06:46:48 AM »

Keep tellin you this damn puter is dyslexic!!!!

dusterdude · « **Reply #17 on:** November 25, 2008, 01:19:48 PM »

i love the queens english,poor old sam must have been wondering why i kept nodding my head the whole time he was here,i didnt understand much of what he was saying,but he did keep me entertained.

SteveD CB500F · « **Reply #18 on:** November 25, 2008, 01:47:29 PM »

Ah but there you are Dusty...

you see, Sam is from "Up North" and therefore speaks a peculiar variant of the Queen's English.

bryanj · « **Reply #19 on:** November 25, 2008, 09:33:28 PM »

Nothin wrong with us northeners, its you molly coddled lot south of watford gap thats the problem!!

TwoTired · « **Reply #20 on:** November 25, 2008, 10:02:41 PM »

Quote from: bryanj on November 25, 2008, 09:33:28 PM

Nothin wrong with us northeners, its you molly coddled lot south of watford gap thats the problem!!

Jeez, such animosity within your own continent. It is any wonder your former colonies told you to piss off?

SteveD CB500F · « **Reply #21 on:** November 25, 2008, 11:02:06 PM »

No north / south split in the US then TT?

bryanj · « **Reply #22 on:** November 26, 2008, 08:17:24 AM »

No animosity at all TT its just the standard "Watford Gap" joke here in the UK, its actualy a very overpriced and crap service area on the M1 motorway---bit like your interstates only busier and pricier

TwoTired · « **Reply #23 on:** November 26, 2008, 09:10:28 AM »

Quote from: SteveD CB500F on November 25, 2008, 11:02:06 PM

No north / south split in the US then TT?

I don't see one.

SteveD CB500F · « **Reply #24 on:** November 26, 2008, 11:46:49 AM »

OK (looking at your location); how about an East Coast / West Coast split?

Can we get back to the fuel line question now (sorry for the hijack...)

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Author Topic: cb550k fuel line (Read 2285 times)