Author Topic: 79 CB650 Cafe with modern upgrades  (Read 29949 times)

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Offline 65Ch3v3LL3

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Re: 79 CB650 Cafe with modern upgrades
« Reply #75 on: May 17, 2015, 01:05:29 PM »
Guys my project isn't dead but it has been severely delayed. My engine builder put my engine on the back burner while I was in Afghan and now he owes me work and I'm having a tough time getting him to get it done. I'm at the point that we need custom made valves cut for the heads and since he is the one that has gotten it this far I really want him to finish it. Hopefully I can keep putting pressure on him to get it finished up. I also came home from Afghan and went back to college full time so that has consumed a lot of my time. Rest assured though that with the parts I have already purchased and the money I have spent that this thing will get finished at some point. Once the engine is actually all back together I will do all the EFI conversion on the engine stand where it is easier to work on. Then the frame modifications will begin.
1979 CB650
2011 Harley Road King
2008 Harley V-Rod VRSC DX
2012 Sierra Denali 2500HD
1965 Chevelle Malibu SS
1922 Ford T-Model

Offline Retro Rocket

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Re: 79 CB650 Cafe with modern upgrades
« Reply #76 on: May 17, 2015, 03:01:48 PM »
Welcome back mate... ;)
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline 65Ch3v3LL3

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Re: 79 CB650 Cafe with modern upgrades
« Reply #77 on: May 17, 2015, 03:15:23 PM »
Thanks. I check in on the site from time to time. I've just been super busy with school and setting up my new shop now that I'm home. It will get done, just not sure when.
1979 CB650
2011 Harley Road King
2008 Harley V-Rod VRSC DX
2012 Sierra Denali 2500HD
1965 Chevelle Malibu SS
1922 Ford T-Model

Offline Badluckhonda

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Re: 79 CB650 Cafe with modern upgrades
« Reply #78 on: October 03, 2015, 01:08:05 PM »
Any progress in your build mn ? Really interested to see how you upgrade the charging system on this cb650 they are known to have really bad systems.

Offline ac44

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Re: 79 CB650 Cafe with modern upgrades
« Reply #79 on: November 26, 2015, 05:29:28 PM »
anything to update? I am interested in doing something similar to my 1980 cb650.

Offline SOHC4 Cafe Racer Fan

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Re: 79 CB650 Cafe with modern upgrades
« Reply #80 on: December 07, 2015, 11:39:34 AM »
I'm joining the pile-on.  Any updates??  Specifically, have you worked out the modification of the CBR600RR stator to upgrade the 650 charging system for the fuel pump/EFI set up?  I wouldn't mind upgrading my 650 charging system if the mod is not too outrageous.
« Last Edit: December 07, 2015, 11:53:12 AM by CB750 Cafe Racer Fan »
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 SOHC4 Cafe Racer Fan

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Re: 79 CB650 Cafe with modern upgrades
« Reply #81 on: January 26, 2017, 02:49:30 PM »
BUMP.  Chevelle, have you revived this project??
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 65Ch3v3LL3

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Re: 79 CB650 Cafe with modern upgrades
« Reply #82 on: October 09, 2018, 05:13:02 PM »
Well guys it’s been forever but sometimes life gets in the way. Engineering school took every spare moment I had and every spare dime I had too. I’ve now graduated and I’m now a Mechanical Engineer. I’ve finally got my shop in order and I’m getting back on past projects. I’m currently building a CM400 for my fiancé but I plan to get back on the 650 soon. It might be the longest project ever but it isn’t dead. Here a snap of the mock-up on the CM400.
1979 CB650
2011 Harley Road King
2008 Harley V-Rod VRSC DX
2012 Sierra Denali 2500HD
1965 Chevelle Malibu SS
1922 Ford T-Model

Offline 754

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Re: 79 CB650 Cafe with modern upgrades
« Reply #83 on: October 09, 2018, 08:47:04 PM »
Congrats on the degree..
 I think that 400 is screaming for  about 3 inches of rear stretch..
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...

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Lost quite a few CB 750's along the way

Offline Tews19

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Re: 79 CB650 Cafe with modern upgrades
« Reply #84 on: October 10, 2018, 05:15:46 AM »
Congrats on the degree..
 I think that 400 is screaming for  about 3 inches of rear stretch..


Agreed Frank!
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline sinister902

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Re: 79 CB650 Cafe with modern upgrades
« Reply #85 on: October 17, 2018, 11:38:44 AM »
carbs are on upside-down on the cm400!

Offline calj737

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Re: 79 CB650 Cafe with modern upgrades
« Reply #86 on: October 17, 2018, 05:59:50 PM »
carbs are on upside-down on the cm400!
Think that makes them "downdraft"  ;D ;D ;D
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

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Offline Godzilla2y

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Re: 79 CB650 Cafe with modern upgrades
« Reply #87 on: January 14, 2020, 10:13:24 AM »
Stumbled upon this thread. Any updates on the bike?

Offline SOHC4 Cafe Racer Fan

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Re: 79 CB650 Cafe with modern upgrades
« Reply #88 on: January 14, 2020, 01:06:54 PM »
He might be overseas again.  I'd love to see an update, too!
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 turboguzzi

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Re: 79 CB650 Cafe with modern upgrades
« Reply #89 on: January 14, 2020, 02:31:45 PM »
was following this for a bit, the porting looks really good....
but guy has been last active october 2018... hope all is good with him

Offline MRieck

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Re: 79 CB650 Cafe with modern upgrades
« Reply #90 on: January 16, 2020, 09:05:01 AM »
 Porting looks good but you have to be really careful with that exhaust guide boss. There is much material between the boss and the valve spring pocket....you can break through easily.
 100 HP is a very, very big number for that size engine.....good luck.
Owner of the "Million Dollar CB"

Offline turboguzzi

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Re: 79 CB650 Cafe with modern upgrades
« Reply #91 on: January 17, 2020, 09:37:37 AM »
Porting looks good but you have to be really careful with that exhaust guide boss. There is much material between the boss and the valve spring pocket....you can break through easily.
 100 HP is a very, very big number for that size engine.....good luck.
agree, was talking more about the Inlet side,
and yes, 100hp claim made me smile,

Offline SOHC4 Cafe Racer Fan

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Re: 79 CB650 Cafe with modern upgrades
« Reply #92 on: January 17, 2020, 10:14:12 AM »
Porting looks good but you have to be really careful with that exhaust guide boss. There is much material between the boss and the valve spring pocket....you can break through easily.
 100 HP is a very, very big number for that size engine.....good luck.
agree, was talking more about the Inlet side,
and yes, 100hp claim made me smile,

But JWilde was able to do 80 mph in 2nd gear on his CB350! LOL!  Yeah, 100 hp is a lot to ask even for a fully upgraded 650 motor. 
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