Author Topic: Cb550 clutch help  (Read 2184 times)

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Offline bryanj

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Re: Cb550 clutch help
« Reply #25 on: November 18, 2021, 04:02:12 AM »
Look at a parts diagram to see how it assembles and you will see where you can have alternative parts for assembly clearance, i think you are getting mixed up between washers and shims
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Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #26 on: November 18, 2021, 09:21:12 AM »
Ok I snapped a pic of this parts diagram. Bryanj- great idea. I do not have a number 14 currently on the clutch. This looks to me like it is the very first item that goes into the shaft before anything else is done. Should I buy this and put it on? If so, I heard there are variations... Which should I look for?

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #27 on: November 18, 2021, 09:24:20 AM »
Btw, this was for my exact year and model. Everything else in the pic is there. It seems like the answer is obvious but you guys know what your talking about so I'm more inclined to listen to y'all especially since some of the manuals are labeled horribly...

Offline bryanj

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Re: Cb550 clutch help
« Reply #28 on: November 18, 2021, 09:55:17 AM »
Down load the original Honda manual as to if that part varies create an account at cmsnl( you dont have to buy anything or give payment details) search the part number and you can look at a list ofall the models it fits.
I used to do this for people but got fed up of the time i was spending
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #29 on: November 18, 2021, 01:48:50 PM »
Well, I rummaged through my spare motor. When I tore apart the bottom end I took out the gears and shaft on the transmission. I figured to myself "self, there is no way a washer stood on the spline while you tore the bottom end apart so it's no use looking at it" well I looked at it and on the clutch spline shaft I found this beauty. So now I have the clutch spacer/washer.... Whatever this thing is... Do you think that by putting this on it will solve the issue??? I hope so. I don't want to pull it all apart at the moment because t have new clutch parts coming and it would be stupid to redo this all in another week. But my curious side realty wants to know. Idk how this little gap could really change the clutch. Sorry for the wild goose chase y'all. If I didn't have you guys helping me, I would not have known I may have been missing the washer in the first place .... Btw, if anyone is looking for all the transmission gears and splines, you can take it for nothing. Just pay S&H. I'm not going to use them, there in good condition. Just a thought. I'll post in a week if it worked or not

Online HondaMan

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Re: Cb550 clutch help
« Reply #30 on: November 23, 2021, 09:21:06 PM »
Well, I rummaged through my spare motor. When I tore apart the bottom end I took out the gears and shaft on the transmission. I figured to myself "self, there is no way a washer stood on the spline while you tore the bottom end apart so it's no use looking at it" well I looked at it and on the clutch spline shaft I found this beauty. So now I have the clutch spacer/washer.... Whatever this thing is... Do you think that by putting this on it will solve the issue??? I hope so. I don't want to pull it all apart at the moment because t have new clutch parts coming and it would be stupid to redo this all in another week. But my curious side realty wants to know. Idk how this little gap could really change the clutch. Sorry for the wild goose chase y'all. If I didn't have you guys helping me, I would not have known I may have been missing the washer in the first place .... Btw, if anyone is looking for all the transmission gears and splines, you can take it for nothing. Just pay S&H. I'm not going to use them, there in good condition. Just a thought. I'll post in a week if it worked or not
Yep, the 'cup' washers are important! Always install them with the 'high' middle side toward you and away from the engine, or if they are flat ones, with the flattest side toward the engine and smoothed side out.

These are used to set up a "stack height" between the bearing that you can see on the mainshaft and the face of the clutch lifter lever. There isn't much room for error on the 550 engine, as the lifter only moves a total of 5mm, with a +/-1mm adjustment range. If the clutch pack is sitting closer to the engine (by the thickness of the washer) then the lifter has little room to work at all.
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Offline dave500

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Re: Cb550 clutch help
« Reply #31 on: November 23, 2021, 10:53:18 PM »
the basket can also foul on the shifter mechanism.

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #32 on: November 30, 2021, 12:42:45 PM »
Ok gentlemen. I got the wrong clutch kit in the mail. Can someone kindly point me in the direction of where I can purchase a new 550 clutch kit. Thank you

Offline dave500

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Re: Cb550 clutch help
« Reply #33 on: November 30, 2021, 09:54:12 PM »
David Silvers

Offline Deltarider

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Re: Cb550 clutch help
« Reply #34 on: December 01, 2021, 12:32:19 AM »
First determine exactly your model. In your case you'll need your enginenumber, since there has been a clutch modification on the CB550F2 model between the enginenumbers 1139188 and 1139189. Identifying a bike just by year (an american habit) is risky and can lead to costly errors in ordering parts. Unfortunately the Honda4Fun site is down. They have the best collection of documents. I direct you to two parts lists on the UK site. The first one is with 'CB550' wrongly named, as it deals about the CB550F only and does not include the CB550F1. Anyway it is here: https://www.dropbox.com/s/wwtfuqz1tbgj5m1/CB550_Parts.pdf?
The second one offered there, is about the model CB550F2: https://www.dropbox.com/s/h7tm19y5fy27vvd/CB550F2_PartsBook.pdf?dl=0.
I suggest you first try to figure it out. When in doubt, you can ask me. I have all three CB550F parts lists in paper. I hope this will help. Ofcourse the possibility remains a PO has changed things before.
« Last Edit: December 01, 2021, 02:23:37 AM by Deltarider »
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Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #35 on: December 04, 2021, 01:56:18 AM »
Thanks guys, attached is my engine serial number. Please help me understand what I need. Thank y'all

Offline bryanj

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Re: Cb550 clutch help
« Reply #36 on: December 04, 2021, 03:09:08 AM »
According to the id book its a 1976 550K BUT if somebody has been in there before all the casings are the same
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Deltarider

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Re: Cb550 clutch help
« Reply #37 on: December 04, 2021, 04:16:57 AM »
Engine is from the model CB550K2, as far as we know marketed only in the US, aka: CB550K'76. Unfortunately the Honda4Fun site is still down, but fiches can be consulted here: https://www.cmsnl.com/honda-cb550-k2-four-1976-usa_model464/partslist/
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Online HondaMan

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Re: Cb550 clutch help
« Reply #38 on: December 06, 2021, 05:23:18 PM »
Ok gentlemen. I got the wrong clutch kit in the mail. Can someone kindly point me in the direction of where I can purchase a new 550 clutch kit. Thank you

What is 'wrong' with that clutch kit? If it is just the plate thickness, you may be able to work around that by adding 2 of the thicker CB750 plates in place of 2 of the thin ones.

Or, the correct ones (if PartsNmore is stocking them correctly again) are 0.121" thick, this part number at Partsnmore.com:
#39-1079B | Honda CB550K (1974-1975)

Look in their CB550K listing under "Clutch" for these.
« Last Edit: December 06, 2021, 05:31:11 PM by HondaMan »
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #39 on: December 07, 2021, 01:57:20 PM »
Well Honda man, I just don't know  this seemed to work before the other guy pulled it apart. Idk, I'm confused as to why I would need to do all these extra steps and additional parts scavenging. I tried to put an extra metal disc but it sounds horrible so I am going to scrap that and try something else. Do I stack all the metal discs and friction plates to find out how thick they are? If so, what it the measurement again? I have two complete clutches so I guess I will try to add them together till I get the right thinckness then try that?. I sent pictures of the plates, do these seem to look like they are in good condition? Lastly, the new clutch plates all fit but the friction squares are placed differently. Like up and down instead of sideways. And it was missing the special friction disc that the tabs are slightly bigger to fit at the top

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #40 on: December 07, 2021, 01:59:46 PM »
So if I can get the measurement procedure ( like do I just stack the plates together and measure them like in your picture Honda man) and what does the thickness need to be between. Lastly, nobody has any source for clutch kit parts for this bike?

Offline Little_Phil

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Re: Cb550 clutch help
« Reply #41 on: December 08, 2021, 02:51:44 AM »
And it was missing the special friction disc that the tabs are slightly bigger to fit at the top
Yes the early 550s did not have the large tabbed top disc. I have one apart off 1000915. But think they changed after a year or so.

Offline Deltarider

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Re: Cb550 clutch help
« Reply #42 on: December 08, 2021, 03:54:34 AM »
Honda4Fun is online again. The CB550, 550K1 and CB550K2 (aka K76) parts list is here: https://www.honda4fun.com/dwnload/Part-List/CB550/CB550-K0-K1-K2-Parts-List.pdf The clutch is dealt with in p.B 8-11.
A remark but not about the clutch. According to your engine number, yours has the modified and improved head with only 4 rocker shafts and not 8.
« Last Edit: December 08, 2021, 04:01:54 AM by Deltarider »
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Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #43 on: December 08, 2021, 09:38:27 AM »
Well, I spent all morning taking the clutch apart putting everything back together and again I got nothing. Bike starts,  I mess with the adjustment screw. I try to put the bike into gear and it wants to engage right away. Would the bikes idle be an issue? I haven't refined the idle process yet so that's a thing. Any other advice? I have no idea what to do? Do you think if I jam it into gear that will help? I know that sound stupid but I ran out of all the smart ideas. Please help.

Offline dave500

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Re: Cb550 clutch help
« Reply #44 on: December 08, 2021, 12:24:18 PM »
sit on the bike and hold both brakes,put it in first and see what it does the plates just might be sticky?

Offline Jaroldoe10

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Re: Cb550 clutch help
« Reply #45 on: December 09, 2021, 12:44:58 AM »
Dave500- I will try it... I honestly have nothing to lose at this point. I'll try that later tonight day and let you know how it goes... EVERYONE ELSE..... Suggestions are welcome. Please and thank you

Offline dave500

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Re: Cb550 clutch help
« Reply #46 on: December 09, 2021, 01:13:39 PM »
to adjust the clutch slacken the cable right off,then apply slight thumb pressure upwards on the lever to adjust the dots like so,also you need the correct cable,the 500 one is not the same you need this much free play.