Author Topic: Another project-1976 Honda CB550K  (Read 16336 times)

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Offline denward17

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Re: Another project-1976 Honda CB550K
« Reply #500 on: July 22, 2024, 03:01:56 PM »
yes ethanol free and 89 octane if I recall..........

Offline grcamna2

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Re: Another project-1976 Honda CB550K
« Reply #501 on: July 22, 2024, 06:53:27 PM »
yes ethanol free and 89 octane if I recall..........

Just what you need  ;)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline denward17

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Re: Another project-1976 Honda CB550K
« Reply #502 on: July 24, 2024, 09:13:28 AM »
Successful carb syncing today after jet needle set installed...............idles well and takes throttle blip good.

Rain is all over the place in my area so might not get a chance to ride today.


Offline grcamna2

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Re: Another project-1976 Honda CB550K
« Reply #503 on: July 24, 2024, 11:02:15 AM »
Successful carb syncing today after jet needle set installed...............idles well and takes throttle blip good.

Rain is all over the place in my area so might not get a chance to ride today.

I know you didn't ask for the rain;we certainly need some out here after almost a month of 100+ degree heat Waves !!
I'm glad to hear you've installed the new emulsion tubes/needle sets  :)
Many sets of carbs 'from back in the day' are running around 'in need' of them;you will feel the difference  ;)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline denward17

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Re: Another project-1976 Honda CB550K
« Reply #504 on: July 24, 2024, 11:47:26 AM »
Looks like the rain is going to hold off until later this evening, so was able to go on ~24 mile ride.

Bike is running fantastic!  The low speed gurgle is gone, when I turn into a low speed corner in 2nd gear and slowly increase throttle it is crisp now, no hesitation.

To recap:
I had Keyster D26 needles in the 4th slot, they were removed  and I installed the Honda needles (272304), with the clip in the 3rd (center) position.
These are the 087A carbs.

With old needles I tried to compensate with the air mixture screws and went up to about 2 3/4 turns out, it helped but gurgle was still there.  With new needles I am 1 1/2 turns out.
« Last Edit: July 24, 2024, 11:51:46 AM by denward17 »

Offline newday777

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Re: Another project-1976 Honda CB550K
« Reply #505 on: July 24, 2024, 11:52:12 AM »
Looks like the rain is going to hold off until later this evening, so was able to go on ~24 mile ride.

Bike is running fantastic!  The low speed gurgle is gone, when I turn into a low speed corner in 2nd gear and slowly increase throttle it is crisp now, no hesitation.

To recap:
I had Keyster D26 needles in the 4th slot, they were removed  and I installed the Honda needles (272304), with the clip in the 3rd (center) position.
These are the 087A carbs.

I need to do them in my K5..... same gurgling rolling back on slow after letting off even just a little bit
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 Mark1976

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Re: Another project-1976 Honda CB550K
« Reply #506 on: July 24, 2024, 12:09:24 PM »
Looks like the rain is going to hold off until later this evening, so was able to go on ~24 mile ride.

Bike is running fantastic!  The low speed gurgle is gone, when I turn into a low speed corner in 2nd gear and slowly increase throttle it is crisp now, no hesitation.

To recap:
I had Keyster D26 needles in the 4th slot, they were removed  and I installed the Honda needles (272304), with the clip in the 3rd (center) position.
These are the 087A carbs.

With old needles I tried to compensate with the air mixture screws and went up to about 2 3/4 turns out, it helped but gurgle was still there.  With new needles I am 1 1/2 turns out.

Congrats,  well done...
It's a process...
Start with the end in mind...

Offline BenelliSEI

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Re: Another project-1976 Honda CB550K
« Reply #507 on: July 24, 2024, 01:27:03 PM »
Well done Denis. Nothing feels better than solving a problem like that!

Offline grcamna2

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Re: Another project-1976 Honda CB550K
« Reply #508 on: July 24, 2024, 02:02:26 PM »
Looks like the rain is going to hold off until later this evening, so was able to go on ~24 mile ride.

Bike is running fantastic!  The low speed gurgle is gone, when I turn into a low speed corner in 2nd gear and slowly increase throttle it is crisp now, no hesitation.

To recap:
I had Keyster D26 needles in the 4th slot, they were removed  and I installed the Honda needles (272304), with the clip in the 3rd (center) position.
These are the 087A carbs.

With old needles I tried to compensate with the air mixture screws and went up to about 2 3/4 turns out, it helped but gurgle was still there.  With new needles I am 1 1/2 turns out.

Smooth power delivery  ;)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline denward17

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Re: Another project-1976 Honda CB550K
« Reply #509 on: July 24, 2024, 03:09:44 PM »
Thanks Guys, discovered an oil leak after my ride today.

The gear shaft seal, which was replaced by a Honda seal back when I was cleaning and rebuilding the top end.

I discovered today while searching there appears to be 2 different sizes from Honda 13.8mm x 24mm x 5mm and 14mm x 24mm x 5mm.

I ordered both to see which one will fit better, not sure what's going on here but will update after seals arrive.

Offline Oddjob

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Re: Another project-1976 Honda CB550K
« Reply #510 on: July 24, 2024, 03:30:38 PM »
The 13.8 seal looks to have superceded the 14.0 seal, most likely to make it grip the shaft better.

Offline denward17

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Re: Another project-1976 Honda CB550K
« Reply #511 on: July 31, 2024, 01:13:06 PM »
The 13.8 seal looks to have superceded the 14.0 seal, most likely to make it grip the shaft better.

I ordered from 2 different vendors, 1 indicated it was 14mm, the other indicated 13.8 mm (on the websites).  Both Honda seals, when I received both, I measured and both were the same(13.8).  With the magnifying glass, both were marked 13.8.

I installed this afternoon and will try to go on a ride in the few days, hopefully it won't leak.  I wrapped the end of the gear shift arm with tape, lubed up the seal and the gear shaft, it went on easily.