Author Topic: CB750 K4 Build - The Cafe Tracer  (Read 118759 times)

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Offline budman

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Re: CB750 K4 Build
« Reply #350 on: May 22, 2016, 04:22:27 PM »
That looks superb!  Nicely done.

mystic_1

Muchos gracias.  I'm eager to get the pistons and the head installed and get this puppy mounted in the frame.  Got some homework to do this week.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #351 on: May 23, 2016, 04:50:36 PM »
I stole this never-been-installed Pamco electronic ignition kit off of EBay for $150.  Just arrived.
« Last Edit: May 24, 2016, 05:43:21 AM by budman »
Bud

1973 CB750K3 Chopper
2021 Indian Scout

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Re: CB750 K4 Build
« Reply #352 on: May 23, 2016, 07:17:38 PM »
Sounds like a heck of a score. 
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 budman

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CB750 K4 Build
« Reply #353 on: June 11, 2016, 07:17:48 PM »
Been a few weeks since I've been able to work on the bike.  I was down the entire Memorial Day weekend with Strep.  Last weekend I bought a new truck.

Today I got the pistons, cylinders and head installed.  I used gray 2-1/2" electrical pvc couplings cut down and some hose clamps for piston ring compressors as described in another thread here.  I really struggled with it.  I had a hard time finding the right tension on the compressors that would squeeze the rings enough and allow the compressors to slide easily down the pistons when installing the cylinders.  In the end I got it done.  Everything feels smooth and the engine turns easily.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline Broseph

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Re: CB750 K4 Build
« Reply #354 on: June 14, 2016, 08:49:36 AM »
Love the polished head man and that wooden seat hump is awesome!
1974 cb750 k4

Offline budman

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Re: CB750 K4 Build
« Reply #355 on: June 14, 2016, 09:32:26 AM »
Thanks.  The head is actually painted.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #356 on: June 18, 2016, 03:30:16 PM »
I got the cam installed and the tappets adjusted.  I think I'm pretty close to sliding this sucker into the frame.





Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #357 on: June 23, 2016, 11:46:10 AM »
Rather than using the original old rusty engine mounting rods and hardware I had my buddy, who owns a machine shop, thread some new stainless steel rods.  These are the two lower rods.  The larger M12 rear rod is shorter than the factory rod since I'm using the stock pegs.  I've got all new stainless steel hardware too.  Should look pretty clean.

After I get the engine in the frame I'll measure for some new stainless steel upper rods and have my buddy thread them too.

Bud

1973 CB750K3 Chopper
2021 Indian Scout

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Re: CB750 K4 Build
« Reply #358 on: June 23, 2016, 11:58:45 AM »
Nice.  He could probably sell those.
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 Stev-o

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Re: CB750 K4 Build
« Reply #359 on: June 23, 2016, 02:05:47 PM »
Nice.  He could probably sell those.

Yes, I'm a buyer.  Bud - have an extra set made up if you can. Thx
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline budman

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Re: CB750 K4 Build
« Reply #360 on: June 23, 2016, 02:42:16 PM »
Nice.  He could probably sell those.

Yes, I'm a buyer.  Bud - have an extra set made up if you can. Thx

I'm going to try to get the engine installed this weekend, then I can take measurements for the two top rods and have them made next week.  If it all goes well I'll get a price from my buddy to do the threading and see if I can come up with a complete price that makes sense for us all.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline luvmy71

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Re: CB750 K4 Build
« Reply #361 on: June 23, 2016, 03:59:40 PM »
Just spent a couple hours reading through this thread.  Love the bike and all the originality you are putting into it.  You are quite the artisan with tools.  Would love it if you could post a video tour of your shop.  Give us all something to shoot for.

Keep up the great work and look forward to hearing it run.
CB750 K1
'74 CB550 Cafe Project

Offline budman

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Re: CB750 K4 Build
« Reply #362 on: June 23, 2016, 04:53:03 PM »
Just spent a couple hours reading through this thread.  Love the bike and all the originality you are putting into it.  You are quite the artisan with tools.  Would love it if you could post a video tour of your shop.  Give us all something to shoot for.

Keep up the great work and look forward to hearing it run.

Hey, thanks for taking the time to check out the thread.  I'm just an old paint and body guy from way back when...don't make my living doing it any more, but I kept all my tools and have acquired some new ones.

We (or should I say "I"?) were lucky to find this place.  The shop was already built.  I told my wife our search for a house just ended.  We've been here 13 years.  I've built all kinds of things in the shop.  If we ever move the new place will have to have a similar setup.  I don't think I could be limited to just a garage.  I guess I could if I had too, but I've gotten spoiled with the space.

I've never videoed any type of project I've worked on or shop tours.  The Hack-a-week guy makes it look easy, but I think I'd be nervous as heck.  When I get the bike done and the shop cleaned up I'll try to remember to do a photo tour of the shop.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

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Re: CB750 K4 Build
« Reply #363 on: June 23, 2016, 05:14:11 PM »
Nice.  He could probably sell those.

Yes, I'm a buyer.  Bud - have an extra set made up if you can. Thx

I'm going to try to get the engine installed this weekend, then I can take measurements for the two top rods and have them made next week.  If it all goes well I'll get a price from my buddy to do the threading and see if I can come up with a complete price that makes sense for us all.

I think you might have more than a few interested buyers.
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 budman

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Re: CB750 K4 Build
« Reply #364 on: June 23, 2016, 05:24:30 PM »
I think you might have more than a few interested buyers.

I'll look into it.  I think they're going to work well.  Just did a test fit.  I'm trying to post a photo, but it's not letting me.


Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #365 on: June 24, 2016, 07:20:26 AM »
Test fit.

Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline Tews19

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Re: CB750 K4 Build
« Reply #366 on: June 24, 2016, 07:30:28 AM »
Also interested bud man in the stainless steel rods. The build is nearing it's end!
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

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Re: CB750 K4 Build
« Reply #367 on: June 24, 2016, 08:49:22 AM »
Count me in for a set.
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 budman

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Re: CB750 K4 Build
« Reply #368 on: June 24, 2016, 12:14:58 PM »
The chain oiler plug I bought off of EBay just arrived.  Looks like the guy just modifies flange head bolts.  The instructions say to fill the shaft with silicon before you screw the plug in place.  Hope it works.  It was pricey.

Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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CB750 K4 Build
« Reply #369 on: June 25, 2016, 04:43:07 PM »
I got the engine installed in the frame today with a little help from myself.  I have a small welding table that I set the engine on.  The adapter slid right of the engine stand and on to the table.  Perfect height.  After I removed the engine stand adapters I pushed the table right up against the lift and put some boards under the engine and into the frame.  I adjusted the height of the lift and wiggled the engine into place.  Wasn't too bad.  I had to pull the two rear oil pan bolts, but no other clearance issues.  I chipped a little paint in the process, but that's all touched up now.  Can't even tell.




Started bolting on a few parts.
« Last Edit: June 25, 2016, 09:20:20 PM by budman »
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline BLAC

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Re: CB750 K4 Build
« Reply #370 on: June 25, 2016, 05:46:47 PM »
Beautiful! I can't wait until mine is at that stage. Exciting!
If you can't fix it with a hammer, it's an electrical problem... If it's an electrical problem, it's Cal's problem.

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*2014 Ducati Streetfighter 848 (sold)
*2014 BMW S1000RR (sold)
*2010 Ducati Streetfighter S
*1978 CB550 Restomod Build
*1974 CB550 Monoshock build
http://forums.sohc4.net/index.php/topic,154614.0.html

Offline budman

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Re: CB750 K4 Build
« Reply #371 on: June 25, 2016, 09:39:36 PM »
Beautiful! I can't wait until mine is at that stage. Exciting!

Thanks.  Still have a long way to go.
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline budman

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Re: CB750 K4 Build
« Reply #372 on: June 26, 2016, 07:27:19 AM »
Everything went pretty smooth with the engine install yesterday.  I did, however, discover a major problem.

Spot the boo-boo.



Ouch!
Bud

1973 CB750K3 Chopper
2021 Indian Scout

Offline Davez134

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Re: CB750 K4 Build
« Reply #373 on: June 26, 2016, 08:19:08 AM »
I'm trying to spot what's wrong, but drawing a blank...is it a petcock clearance issue?

Offline budman

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Re: CB750 K4 Build
« Reply #374 on: June 26, 2016, 08:52:21 AM »
I'm trying to spot what's wrong, but drawing a blank...is it a petcock clearance issue?

That's it.  I didn't have an assembled engine at the time I was modifying the gas tank.  I had to guess on the placement of the peacock.  The only place that looks like it will clear is in front of the valve cover.  Lots of work to make that happen.
Bud

1973 CB750K3 Chopper
2021 Indian Scout