Fuel Feeder Tube for 79 CBX

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Fuel Feeder Tube for 79 CBX

Postby HondaJohn » Thu Jun 21, 2012 1:38 pm

I need a fuel feeder tube for a carb rebuild on a set of 79 CBX carbs - the one that goes between #5 and 6 carbs. I have one from a set of 82 carbs but discovered that it is larger in diameter, even though the bottom still fits the carb fuel orifices. If someone has the tube that I need, please let me know cost etc... Thanks.
79, 80, 81, 82 CBX's, 87 Hurr 1000F, 83CB1100F, 87 VFR700, 01 Blackbird
40 yrs of Hondas and still baffled....
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Re: Fuel Feeder Tube for 79 CBX

Postby EMS » Thu Jun 21, 2012 1:48 pm

John,

I am a little confused about what you are actually looking for. Do you have a vacuum valve on your CBX?
The original 79 carb had only one tube from the petcock to the carburetors....
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Re: Fuel Feeder Tube for 79 CBX

Postby daves79x » Thu Jun 21, 2012 2:06 pm

Ditto on Mike's reply - there is only one fuel inlet on the '79 carbs and yes, it is 1/4 inch vs the 5/16 inch on the two inlets for the '80-'82 carbs. Your '79 set should have just an aluminum connector between 5 and 6.

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Re: Fuel Feeder Tube for 79 CBX

Postby HondaJohn » Thu Jun 21, 2012 2:13 pm

oops, I was looking at the wrong carbs. I have 3 sets in progress right now. got confused - need to take a break. Thanks for the comments.
79, 80, 81, 82 CBX's, 87 Hurr 1000F, 83CB1100F, 87 VFR700, 01 Blackbird
40 yrs of Hondas and still baffled....
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Re: Fuel Feeder Tube for 79 CBX

Postby HondaJohn » Thu Jun 21, 2012 2:19 pm

Would I gain anything by putting another fuel tube between 5 and 6? The only one I have would be off of a cannabalized set of 82 carbs.
79, 80, 81, 82 CBX's, 87 Hurr 1000F, 83CB1100F, 87 VFR700, 01 Blackbird
40 yrs of Hondas and still baffled....
HondaJohn
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Re: Fuel Feeder Tube for 79 CBX

Postby EMS » Thu Jun 21, 2012 3:16 pm

HondaJohn wrote:Would I gain anything by putting another fuel tube between 5 and 6? The only one I have would be off of a cannabalized set of 82 carbs.


You would need a petock with a second outlet or add a "T" into the single line.

I can't say that there is absolutely no benefit to adding another fuel line, but I also can't see one that is obvious.

I used to hang around Harley guys a lot and to those who felt the need to shell out in excess of $100.- for a hi-flo Pingle petcock I always told this:

Fill your tank up fully. Disconnect the fuel line to the carb and route it into a large gasoline can.
Open the petcock and start a stop-watch.
Take the time it takes for the tank to drain completely- 20, maybe 25 minutes?
If your motor is capable of emptying the tank that fast, you need a high flow petcock.
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Re: Fuel Feeder Tube for 79 CBX

Postby tevan » Thu Jun 21, 2012 3:26 pm

Very good explanation EMS and I agree with you 100%............. :text-+1:
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Re: Fuel Feeder Tube for 79 CBX

Postby HondaJohn » Thu Jun 21, 2012 3:57 pm

Thank you. I am curious about that tank emptying.
79, 80, 81, 82 CBX's, 87 Hurr 1000F, 83CB1100F, 87 VFR700, 01 Blackbird
40 yrs of Hondas and still baffled....
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Re: Fuel Feeder Tube for 79 CBX

Postby steve murdoch icoa #5322 » Thu Jun 21, 2012 8:40 pm

John, i have read that only a BIG engine would require or benefit from the second gas line.
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