Author Topic: 1977 550 four petcock  (Read 2106 times)

Offline oldtuggie

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1977 550 four petcock
« on: July 28, 2025, 08:35:39 PM »
Hi all
Has anyone got a petcock for a 1977 550 four that they would like to sell please

Offline Sesman

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Re: 1977 550 four petcock
« Reply #1 on: July 29, 2025, 07:47:41 AM »
You have shown two pictures of different petcocks. I presume you want the one shown from the CMNSL fiche?

Offline Orcade-Ian

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Re: 1977 550 four petcock
« Reply #2 on: July 29, 2025, 10:54:26 AM »
Hi,
As far as I know the twin outlet tap is no longer available - I did try very hard to source one.  I ended up with a single outlet tap from DS and used a T piece.  There was insufficient flow at WOT, due to the filter screen being too fine, so 1&2 became starved.  I swapped the coarser screen from the original tap which was stained but serviceable and now all is well.  Let us know if you find a 2 outlet supply somewhere!

Ian

Offline DomP

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Re: 1977 550 four petcock
« Reply #3 on: August 03, 2025, 09:10:39 PM »
Hey Ian, there is a seller on Ebay with the two outlet 550f tap but it is a hefty £60
1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline Bryanj

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Re: 1977 550 four petcock
« Reply #4 on: August 03, 2025, 09:35:22 PM »
At £60 it aint genuine honda

Offline Orcade-Ian

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Re: 1977 550 four petcock
« Reply #5 on: August 04, 2025, 05:22:36 AM »
Hi Dom,
Do you have the link to that twin outlet tap?  I searched again but didn't find it.  Might be worth a look but as Bryan said, it can't be gen Honda at £60 - they would be twice that and more.

Ian



Offline DomP

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Re: 1977 550 four petcock
« Reply #7 on: August 04, 2025, 07:18:07 PM »
https://ebay.us/m/Z2LRJa

Same one as Johnny linked by the looks of it, they claim its Honda but it can't be.
1975 XS650B
1976 CB550F1 current project
2012 Triumph Daytona 675

Offline Jond99

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Re: 1977 550 four petcock
« Reply #8 on: August 04, 2025, 08:09:31 PM »
https://ebay.us/m/Z2LRJa

Same one as Johnny linked by the looks of it, they claim its Honda but it can't be.

Not sure if anyone here has had experience of dealing with DD Mototeam, but based on my recent dealings directly with them possibly proceed with caution. Very poor communications, no confirmation of order and no dispatch email.

At least I’ll be covered by PayPal (hopefully).

Offline Johnny4428

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Re: 1977 550 four petcock
« Reply #9 on: August 04, 2025, 09:52:12 PM »
https://ebay.us/m/Z2LRJa

Same one as Johnny linked by the looks of it, they claim its Honda but it can't be.

Cheaper that one Dom!😜 These look the part. The originals I have are made by Keihin which is stamped on the side. I would be interested to know what these are like.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1
1978 Honda CB550K3
1999 ST1100 Pan European 50th Anniversary.
1975,1984,1986 Honda C90’s
1973 Honda CB750K3
1977 Honda CB550 (almost)

Offline Orcade-Ian

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Re: 1977 550 four petcock
« Reply #10 on: August 05, 2025, 12:23:50 PM »
Ad says description has been translated, so no idea of origin.  If paypal protected it might be worth looking at.  The filter screen looks very fine mesh but if both outlets work correctly it shouldn't be the same problem as a single outlet with T piece.  Might have a go but I can't imagine being able to get at my T piece to connect to 1&2 without pulling the whole bank off - Grrrr!

Ian

Offline Grewth

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Re: 1977 550 four petcock
« Reply #11 on: August 05, 2025, 09:04:45 PM »
I ordered a genuine Honda one from Japan from an eBay listing.
Followed the online tracking as far as UK Customs, then it never progressed any further.
Weird.
Got a full refund from eBay but it wasted four weeks of my time.
Bought a single outlet pattern one now.
Not ridden the bike yet, so I can't comment on the fuel starvation issue

 

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