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Author Topic: 76 CB550 Cafe build  (Read 90231 times)

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Offline RAFster122s

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Re: 76 CB550 Cafe build
« Reply #300 on: December 10, 2018, 08:13:56 PM »
Having this solution for the 550 to have a high output stator would be most welcome. So, you have my attention!
David
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #301 on: December 11, 2018, 11:57:37 AM »
Quote from: SOHC4 Cafe Racer Fan on December 10, 2018, 03:36:20 PM
Damn.  Getting that part hardened (cryo treatment, I presume) could be expensive for such a small item.  You should have made a bunch (for us!) and reduced your unit cost.

The precision involved meant that even after getting the angles correct I spent two hours on the lathe cutting the unit.  Not exactly something I could make in bulk.
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #302 on: December 11, 2018, 01:09:57 PM »
The problem comes more from the inherent errors when trying to measure an angle, not reproducing it.  I can use trig and my DRO to get angles down to .05 degrees, but trying to measure the inside diameter of the outside end of the CBR rotor, then the inside end of the large end of the tape and then the distance between those two measurements, well at that point I'm really not certain to within a few tenths of a mm.

I should get a sine bar because it would make it quicker to set things up when I'm trying to cut a known angle.  It's kind of amazing that I can't get the specs on the taper of even the 2008 rotor online, it seems like everything lives online these days.
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Offline RAFster122s

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Re: 76 CB550 Cafe build
« Reply #303 on: December 12, 2018, 02:33:51 AM »
Dang Cal! You are a wealth of knowledge and experience.
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #304 on: December 12, 2018, 01:29:34 PM »
Got the matching stator in the mail today.  Everything fits easily under the stock cover, I will just have to machine up an adapter to hold the stator in the cover correctly.

But all of this is on hold because I just got a big pallet delivered from Edelbrock to supercharge my Subaru BRZ.  Time for a little fun on four wheels instead of two.
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #305 on: January 20, 2019, 12:36:28 PM »
Grabbed the new rearsets from CognitoMoto.  Got the foldable pegs and figured with Cognito mounts for a CB550 they would clear the kickstart lever.  That was a poor assumption on my part.  Have to look to see what everyone else is doing in this instance.



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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #306 on: February 01, 2019, 07:05:12 AM »


Some days you should have just stayed in bed...

Threading holes for Cognito steering stops and my damn tap snapped off.  In freaking aluminum!  Trying to get it out would just destroy everything, fortunately I had another lower triple laying around from my initial ebay spending spree.  Spent a couple hours taking off the extra mounting points and filing/sanding it all back down.  This time I tapped the holes first though...
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #307 on: February 01, 2019, 09:56:31 AM »
I used what was printed on the tap, I think it called for a 13/64".

Maybe the tap was garbage, did the same thing on the second clamp and it worked fine
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Offline kerryb

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Re: 76 CB550 Cafe build
« Reply #308 on: February 01, 2019, 09:27:39 PM »
There is a broken tap removing tool, it is three or 4 fingers that slide into the flutes of the broken tap allowing you to back the tap out of the hole.  They come in various sizes for different taps.
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Offline seanbarney41

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Re: 76 CB550 Cafe build
« Reply #309 on: February 02, 2019, 02:22:33 AM »
Quote from: kerryb on February 01, 2019, 09:27:39 PM
There is a broken tap removing tool, it is three or 4 fingers that slide into the flutes of the broken tap allowing you to back the tap out of the hole.  They come in various sizes for different taps.
those things rarely work any better than a simple hammer and punch...so what is the best way to fix a broken tap?...don't break the tap!
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If it works good, it looks good...

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #310 on: February 02, 2019, 10:09:33 PM »
Machining the mount for the stator today.



I can't find my stock stator.  Anyone have one laying around that can measure the diameter of the stator collar that slides over the three standoffs in the cover?  I could do math and some construction to get it but a direct measurement with metric calipers would be better.

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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #311 on: February 07, 2019, 07:31:58 AM »
For posterity, the machined circumference on the 3 stator standoffs is 83 mm.  Other side of the stator mount is done, machining the back side with this new measurement tonight.



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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #312 on: February 16, 2019, 09:50:45 AM »
Stator mount is done.  Have to get a couple button head m6 screws but otherwise it all bolts up and my new charging system is done  ;D




Have to drain forks this weekend and put new seals in, then the whole front end is ready to get assembled for hopefully the last time.
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Offline SOHC4 Cafe Racer Fan

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Re: 76 CB550 Cafe build
« Reply #313 on: February 24, 2019, 03:03:03 PM »
When are you going to finish this bike so we can nominate it for BOTM?
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #314 on: February 24, 2019, 03:24:02 PM »
Hahaha. It is taking quite some time...

My realistic goal is summer 2020, but aside from some mechanical connections for the rearset it is really only wiring at this point so maybe sooner.  Problem is I want all motogadget stuff, so the expense has to be spread out. Can't have my wife finding out I've spent $15k to build a forty year old bike :)
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Offline DANFROMOZ

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Re: 76 CB550 Cafe build
« Reply #315 on: February 25, 2019, 10:40:37 AM »
Quote from: tshrey on February 24, 2019, 03:24:02 PM
Hahaha. It is taking quite some time...

My realistic goal is summer 2020, but aside from some mechanical connections for the rearset it is really only wiring at this point so maybe sooner.  Problem is I want all motogadget stuff, so the expense has to be spread out. Can't have my wife finding out I've spent $15k to build a forty year old bike :)
I hear ya, I'll be heading in a similar direction with mine, but my Mrs just said I need to build her one next....
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #316 on: March 18, 2019, 01:19:55 PM »
Didn't like the way the upper bearing race sat outside the neck, so I machined a cover for the whole thing



Had a nice day outside and with that cap done I could button up the front end for the last time and put the front fender on.



Still need to get linkages done for the rearsets.  Ordered headlight brackets and then have to figure out what size I want, I think the stock 7" is just too big since I made all the other dimensions of the bike smaller.  Then all that is left is wiring!!
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Offline river

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Re: 76 CB550 Cafe build
« Reply #317 on: March 25, 2019, 08:37:18 PM »
Paint looks rad.
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Squirrel 1.0 http://forums.sohc4.net/index.php/topic,127186.2050.
ml

Squirrel 2.0
http://forums.sohc4.net/index.php/topic,176846.msg2055831.html#msg2055831

Squirrel 3.0
http://forums.sohc4.net/index.php/topic,185362.msg2146449.html#msg2146449


"You wouldn't think that out here...a man could simply run clear...out of country but oh my...oh my...nothing but the light." -Ben Nichols

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #318 on: April 01, 2019, 01:40:01 PM »
Got my headlight mounts and bolted on the stock light.  I think it is too big for the big now that I've made everything else about it so minimal.  Probably going to go with a 5.75" led headlight (the bucket I found is 1" narrower than the stock one).




Also got overruled on the tail light.  Was planning some kind of shark fin-styled red circle light, but my daughter picked the led strip with turn signals.  I didn't plan on doing that so I didn't flush it into the rear hoop and didn't want it just attached to the frame.  I used a strip of carbon fiber epoxied to the inside of the rear hump that hangs down 6 mm to put the tail light on.  Came out very well. No pics, you'll just have to take my word for it :)
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Offline Marissa

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Re: 76 CB550 Cafe build
« Reply #319 on: April 03, 2019, 08:52:51 PM »
Coming together quite well!
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Offline Gurp

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Re: 76 CB550 Cafe build
« Reply #320 on: April 23, 2019, 05:24:34 AM »
Super clean build!
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slow Progress 74 cb550.

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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #321 on: April 23, 2019, 05:44:10 AM »
New headlight is in, looks much better.

I agree about the fender, but I bought the kit from Cognito and the gap doesn't bother me enough for the amount of work it would take to get it closer to the tire.

Very little done to the bike that is visible, working on the rear fender liner in carbon fiber right now so that I can get the battery mounted and start laying out wiring.
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Offline MRieck

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Re: 76 CB550 Cafe build
« Reply #322 on: April 27, 2019, 09:07:12 AM »
Very nice project. Should perform very well too. ;)
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Offline jakec

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Re: 76 CB550 Cafe build
« Reply #323 on: May 03, 2019, 01:29:35 PM »
What did you do with your stock exhaust?
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #324 on: May 03, 2019, 01:36:59 PM »
The majority of it I vacuumed off the floor of the garage since it turned to dust when I touched it. 
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