Author Topic: Raymax's K2? Cafe (Eventually) Need new cases :'(  (Read 2101 times)

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Offline Raymax

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Raymax's K2? Cafe (Eventually) Need new cases :'(
« on: February 11, 2013, 09:50:48 AM »
Well, I finally started teardown on my bike.


My friend found it for me, living in a barn in Illinois. The PO said it had been parked for 10 years, but it does kick over and the oil pressure light went out. I have a few ideas in my head for where I want to go with this bike, but they won't be concrete until the bike is done :o.

Anyways, I'm a man of few words, so I'll commence with the pictures. This is from a few weeks ago, it's actually a little further down than this but haven't really touched it since then :'(. Been busy with school lately, and also trying to get my KLR650 running again so I can sell it, can't seem to get the carb clean enough to run properly (Which is scary, because it's just ONE carb!).

Here she sits when my friend picked her up. It was actually brought down to TX towed behind a Prius of all vehicles.



A little pressure washing to clean up





Here's hoping this is only 16,000. Not 160,000  :-X



And the bad:

The PO must have been Thor, because both clamps are cracked. Possible candidate for a Goldwing swap?





This looks factory  ???



Right side cover is in good shape, but left side has a small crack








At the end of the day. Doesn't look like I got much done. I was moving a little slow, learning my way around the bike.


 
And my pile-o-parts






Nothing exciting yet. If I have time, I would like to get the engine out next weekend.

Thanks for watching
« Last Edit: February 19, 2013, 05:27:35 PM by Raymax »

Offline iron_worker

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Re: Raymax's K3
« Reply #1 on: February 11, 2013, 11:27:08 AM »
So what are you plans for the build? Resto, old school hot rod, cafe?

IW

Offline SOHC4 Cafe Racer Fan

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Re: Raymax's K3
« Reply #2 on: February 11, 2013, 01:12:48 PM »
Getting rid of the King and Queen seat was a drastic improvement!
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 Raymax

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Re: Raymax's K3 Cafe (Eventually)
« Reply #3 on: February 11, 2013, 04:07:32 PM »
So what are you plans for the build? Resto, old school hot rod, cafe?

IW

Yeah, got all caught up in posting pictures. My plan is definitely to go cafe with the bike. I'm having to think hard right now about how much I want to spend on it though, that will drive my plans.

My main inspiration definitely comes from these two bikes though:




Offline SOHC4 Cafe Racer Fan

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Re: Raymax's K3 Cafe (Eventually)
« Reply #4 on: February 11, 2013, 04:35:36 PM »
Great looking inspiration.  You might want to try to get it running so you know what kind of shape the electrical and motor are in -- before you tear it all apart -- rather than not knowing the running condition of your components.

You can spend a little or a lot of money.  Be realistic about your budget (at least to yourself) because it will probably inflate when you seen all of the cool stuff available.  If you can fabricate or machine metal, you will be a huge step ahead.  If you can wrench and tune carburetors, you will also be a huge step ahead. 
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 stuartni

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Re: Raymax's K3 Cafe (Eventually)
« Reply #5 on: February 12, 2013, 04:32:56 AM »
looks like a good bike to build from good luck with the build

Offline Raymax

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Re: Raymax's K3 Cafe (Eventually) Engine's out
« Reply #6 on: February 17, 2013, 07:02:44 PM »
Well, finally got some time this weekend. Managed to get the engine out of the frame and started tearing it down. Look like I'm gonna need some new case halves though. Mine have a hole from the chain, and got some pretty bad corrosion on the rear. Head and jugs look pretty good though. Need to find a good machine shop to send the cylinders to, so they can be measured and bored if needed. May just send everything to cyclex, depending on cost.

Anyways, more pictures.

I was all set up to try the Jackstand method, when my dad said "Why don't we just lift it out?". So we did. Went pretty smoothly.


And the bare frame



Ready for teardown



And the nice hole



Valve cover off



I don't think this bolt is factory?



One of my rocker shafts was sheared in half



Head off



What's left. Still have to split the cases





I'm glad to have some progress again. Looking for new cases now, there's some off a 75 on ebay right now.

Offline AbbyRider

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Re: Raymax's K3 Cafe (Eventually) Need new cases :'(
« Reply #7 on: February 18, 2013, 09:03:48 AM »
I use this ebay seller quite a bit - they've got lots of CB's parted out, and the best thing is that they take offers on everything - I just picked up a good set of coils for $20 and a set of barely used primary chains for $17. I noticed that they've got cases off both a '70 and a '76. Good luck with the build.

http://stores.ebay.com/Rubber-City-Vintage-Cycle?_rdc=1
'98 VTR1000 Superhawk
'78 CB750F
'77 CB750F (in the works)
'81 KZ650 sitting in pieces in my basement

Offline iron_worker

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Re: Raymax's K3 Cafe (Eventually) Need new cases :'(
« Reply #8 on: February 18, 2013, 09:58:24 AM »
Sucks about the cases. You should note that if you know a skilled fabricator/machinist he can probably fix the cases. Otherwise, like said about: there are plenty of parts motors out there... just make sure they don't have the same problem as yours. ha

IW

Offline Kevin D

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Re: Raymax's K3 Cafe (Eventually) Need new cases :'(
« Reply #9 on: February 18, 2013, 01:21:33 PM »
When you get to the top tree dont forget to replace the missing spacer washer that goes at the pinch point.
71 CB750 K1
104,000 miles
Original Owner
———past———
70 SL100/125/150
70 Candy BlueGreen CB 750 K0
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Whether you think you can or think you can’t, you’re right
Genius is 99% perspiration, 1% inspiration

Offline 754

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Re: Raymax's K3 Cafe (Eventually) Need new cases :'(
« Reply #10 on: February 18, 2013, 09:06:34 PM »
Is that a real early 73, has early head, and top tree is wrong for that year..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

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Offline Raymax

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Re: Raymax's K3 Cafe (Eventually) Need new cases :'(
« Reply #11 on: February 19, 2013, 05:27:19 PM »
Is that a real early 73, has early head, and top tree is wrong for that year..
You inspired me to do some research. I was under the impression that it was a 1973 (and therefore a K3 right?). But it looks like it is in fact a K2. The Engine SN is: 2069887 and Frame is: 2062111(I think, the last few are hard to tell). From my quick look, I guess that make sit a K2.


@Abby and IW Thanks for the tips. I'm probably gonna order cases in the next week or so. Should get the engine torn down this weekend.

I have searched, and I think I found the answer, but it is possible to interchange Cases and Cyl/heads? For example, I could put my K2 head/cyl on those 76 cases?

Kevin Appreciate it, I probably would have missed that.

Offline SOHC4 Cafe Racer Fan

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Re: Raymax's K2? Cafe (Eventually) Need new cases :'(
« Reply #12 on: February 19, 2013, 06:42:43 PM »
I also have a 1973 K2.  Mine was manufactured in June 1972, but "strangely" was titled as a 1973.
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 dusterdude

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Re: Raymax's K2? Cafe (Eventually) Need new cases :'(
« Reply #13 on: February 19, 2013, 06:53:54 PM »
My k1 was built in aug of 71 but titled as a 72
mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline Raymax

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Re: Raymax's K2? Cafe (Eventually) Need new cases :'(
« Reply #14 on: February 19, 2013, 07:04:41 PM »
Well there ya have it! That's what I get for ASSuming  :P  Thanks guys, now I know.

Offline 754

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Re: Raymax's K2? Cafe (Eventually) Need new cases :'(
« Reply #15 on: February 19, 2013, 08:16:47 PM »
In 73 they went to a wider output shaft bearing, So 73-76 maybe the way to go if you cant find 72 cases. Yours can be fixed. 77 and 78 motors have a longer sprocket shaft, good if you want wide tire, you have to shim rear sprocket or change carrier if you want to run those 2 years.
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way