Author Topic: 1978 cb550 four k3 ( USA import) Choke rod spring  (Read 481 times)

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Offline briancairns

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1978 cb550 four k3 ( USA import) Choke rod spring
« on: August 28, 2023, 12:13:46 PM »
Hi
I  pulled the carbs, and realized its missing this spring. I'm told its not sold separately by most bike part stores online. But hoping someone knows otherwise. Its the smaller gauge spring on right.


Thanks

Brian

1978 cb550 four k3 ( USA import) Choke rod spring. PD Carbs

Offline newday777

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #1 on: August 28, 2023, 02:35:20 PM »
It's true that it's not sold as the spring alone. It comes as part of(#3) 16032-404-425 which might still be available (Doesn't show not available) so contact South Sound Honda  to see if it is available.
Fiche link
https://www.southsoundhonda.com/--xpartsstream#/Honda_Powersports/CB550KA_(78)_550_FOUR_K%2c_JPN%2c_VIN%23_CB550K-2100001_TO_CB550K-2122082/CARBURETOR_78/0f12de96-474a-4fbe-a2ee-8ba2cda5f653/34e7e34f-f52c-4b40-b2cf-4f4d9c5c1ff2/y

Contact
https://www.southsoundhonda.com/honda-suzuki-motorcycles-info-olympia-washington--xcontact
Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline Flyin900

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #2 on: August 28, 2023, 04:20:07 PM »
I see your in Ireland, so a bike breaker in the UK or Europe maybe your best bet. You will need to purchase a broken partial set if possible or the complete rack. That spring is universal on many of the Keihin carbs from the late 70’s to the mid 80’s. The part maybe available new as suggested above, yet I expect that assembly will be expensive if it is available.
« Last Edit: August 28, 2023, 04:24:22 PM by Flyin900 »
Common sense.....isn't so common!

1966 CL77 - 305cc - Gentleman's Scrambler
1967 CL175K0 - Scrambler #802 engine
1972 CB350F - Candy Bacchus Olive - Super Sport
1973 CB350F - Flake Matador Red - Super Sport
1975 CB400F - Parakeet Yellow - Super Sport
1976 CB400F - Varnish Blue - Super Sport
1976 GL1000 - Goldwing Standard
1978 CB550K - Super Sport
1981 GL1100 - Goldwing Standard
1982 CM450A - Hondamatic
1982 CB900C - Custom
1983 CX650E - Eurosport
1983 CB1000C - Custom X 2 Bikes now - both restored
1983 CB1100F - Super Sport - Pristine example
1984 GL1200 - Goldwing Standard

Offline PeWe

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #3 on: August 28, 2023, 08:52:58 PM »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline briancairns

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #4 on: August 29, 2023, 12:51:20 AM »
Thanks all

Brian

Offline briancairns

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #5 on: August 29, 2023, 03:39:33 AM »
Thanks all

Brian

Think I got one!!! from DK Motorcycle spares

Thanks so much.

Brian

Offline Nurse Julie

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #6 on: August 29, 2023, 07:32:50 AM »
Brian. Join us on www.sohc.co.uk
Lots of us have spares laying around.
Trust me I'm a Nurse, I promise it won't hurt....much

Offline briancairns

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Re: 1978 cb550 four k3 ( USA import) Choke rod spring
« Reply #7 on: August 29, 2023, 07:35:21 AM »
ok cheers