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Author Topic: CB550F1 fuel tap  (Read 4745 times)

Offline Laverdaroo

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Re: CB550F1 fuel tap
« Reply #15 on: June 06, 2024, 10:33:59 PM »
Quote from: DomP on June 06, 2024, 09:18:17 PM
Thanks Roo, perfect! There's a lovely photo of your fuel filter about 5 posts above your last one
Ha haa, didn’t realise

How come you didn’t run the gauze Dave?


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Mornings are the invention of the devil!
1992 VFR750 FN (oldie but goldie) 'Betty'
1977 CB550F (current money pit!!) 'Mejima'
2002 VFR800 VTEC (The Beloved) 'Rose'
1977 CB400F (the last money pit!) 'Chewy'
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline davidcumbria

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Re: CB550F1 fuel tap
« Reply #16 on: June 07, 2024, 07:35:06 AM »
There are reports ( delta rider ) that an in line filter ( not fitted by Honda) can negatively affect running. The filter gauze on the tap inlet is very fine so I have been relying on that with no issues so far. Used the planet silicon hoses on eBay as recommended by Julie.
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500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Yamaha fazer 600, Yamaha XT250, BmwR80 , HondaVT1300, Royal Alloy GT125.

Offline Laverdaroo

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Re: CB550F1 fuel tap
« Reply #17 on: June 07, 2024, 09:11:09 AM »
Never had an issue with inline filters, don’t see the problem personally and there’s no restriction to flow as I checked so not sure where that’s come from. Might have had a duff one.


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Mornings are the invention of the devil!
1992 VFR750 FN (oldie but goldie) 'Betty'
1977 CB550F (current money pit!!) 'Mejima'
2002 VFR800 VTEC (The Beloved) 'Rose'
1977 CB400F (the last money pit!) 'Chewy'
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Online McCabe-Thiele (Ted)

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Re: CB550F1 fuel tap
« Reply #18 on: June 07, 2024, 09:26:05 AM »
On my 400 I used an alloy in line filter as the plastic one fell to bits.
Alankelly1 recommended them.
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Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Laverdaroo

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Re: CB550F1 fuel tap
« Reply #19 on: June 07, 2024, 11:04:16 AM »
I’ve a couple of those in the drawer Ted, I forgot I had them when I installed the plaggy ones that are currently on.


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Mornings are the invention of the devil!
1992 VFR750 FN (oldie but goldie) 'Betty'
1977 CB550F (current money pit!!) 'Mejima'
2002 VFR800 VTEC (The Beloved) 'Rose'
1977 CB400F (the last money pit!) 'Chewy'
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline DomP

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Re: CB550F1 fuel tap
« Reply #20 on: June 07, 2024, 12:16:44 PM »
Ordered the tap David linked, hopefully it solves my leaky tap problem
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1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline Laverdaroo

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Re: CB550F1 fuel tap
« Reply #21 on: June 07, 2024, 02:34:32 PM »



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Mornings are the invention of the devil!
1992 VFR750 FN (oldie but goldie) 'Betty'
1977 CB550F (current money pit!!) 'Mejima'
2002 VFR800 VTEC (The Beloved) 'Rose'
1977 CB400F (the last money pit!) 'Chewy'
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline Seabeowner

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Re: CB550F1 fuel tap
« Reply #22 on: June 09, 2024, 07:31:21 PM »
Just for anyone else reading this,  4into1 sells a pricey repro + post is ££.
https://4into1.com/reproduction-petcock-20mm-x-1-5mm-16950-374-671-honda-cb550-1975-1976/

https://www.ebay.com/itm/186451810225
« Last Edit: June 09, 2024, 07:33:22 PM by Seabeowner »
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1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange

Offline Laverdaroo

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Re: CB550F1 fuel tap
« Reply #23 on: June 09, 2024, 10:39:03 PM »
Yeah, cheers for that, they’re a bit dear then you’ve to send it at silly costs. I priced that out of the search fairly quickly but cheers for the info nonetheless the less.


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Mornings are the invention of the devil!
1992 VFR750 FN (oldie but goldie) 'Betty'
1977 CB550F (current money pit!!) 'Mejima'
2002 VFR800 VTEC (The Beloved) 'Rose'
1977 CB400F (the last money pit!) 'Chewy'
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline DomP

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Re: CB550F1 fuel tap
« Reply #24 on: June 21, 2024, 08:16:58 PM »
Received the above fuel tap and can confirm it isn't the correct tap for my fuel tank, the threaded nut is too big.  If anyone wants it for what it owes me let me know. 

I think mine must be a 16mm thread rather than the 20mm that this tap is, why I didn't think to measure first I don't know.
« Last Edit: June 21, 2024, 10:25:25 PM by DomP »
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1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline davidcumbria

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Re: CB550F1 fuel tap
« Reply #25 on: June 22, 2024, 08:43:39 AM »
Sorry to hear Dom - there are a couple of different tap outlet sizes and my 550 k1 is this 20mm. Bummer.
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500/4 in 79. No bikes for 30 years. 750/4 in 2013, 550/4 in 2023. Also own  R1100GS, RD350LC YPVS , Yamaha fazer 600, Yamaha XT250, BmwR80 , HondaVT1300, Royal Alloy GT125.

Offline DomP

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Re: CB550F1 fuel tap
« Reply #26 on: June 22, 2024, 09:54:27 AM »
Quote from: davidcumbria on June 22, 2024, 08:43:39 AM
Sorry to hear Dom - there are a couple of different tap outlet sizes and my 550 k1 is this 20mm. Bummer.

Oh no probs David, even the filter gauze wouldn't fit through the tank spigot so I'm hoping a 16mm version has a thinner gauze tube.
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1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675
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