Author Topic: My first complete build 72 CB750 - completed for now...  (Read 56250 times)

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Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now
« Reply #250 on: January 11, 2019, 08:22:07 AM »
Thats pretty awesome.. your involvement with the show and the nomination... I thought you were referring to j webster. I met him briefly at the 1st og moto show.

Well, I am not officially involved in the show.  Jay is one of the partners.  That said, I'll be helping load in bikes, having them photographed, and placing them in the space.  In exchange, Jay hooks me up with a VIP pass.  The best part is meeting all the builders.
regardless, that's pretty awesome. maybe you can put in a "good word"  ;D... a special amateur section.
it always felt the LA area was voided of that particular motorcycle culture, needless to say I was stoked when the first OG show was put together.

Up to 3 years ago, LA was definitely lacking a top-shelf custom builder show similar to the One Moto Show (Portland, OR) and the Handbuilt Show (Austin, TX).  Given the number of builders, riders and enthusiasts in Southern California, there was a market for show here.

Kevin Dunworth and the House of Machines also did a small invite-only show for 21 bikes this last summer - the Golden Bolt Show - in Los Angeles.  The bikes featured were top notch, but the event could have been promoted better, and it was pretty much limited to just those bikes.

The Outlier's Guild (OG) Moto Show will feature a number of invited pro builders (bikes displayed on platforms), with other bikes submitted and approved for display, an area for motorcycle art (photos, sculpture, media), selected vendors, food and beverage, music, etc.  The invited pro built bikes feature some of the best builders in the country (e.g., Max Hazan, Woolie, Cristian Sosa, Kiyo, Shinya, Suicide Machine, Brandon Holstein/Speed Merchant, Justin Webster).

Check out the photo galleries from the last 2 years: http://www.ogmotoshow.com/media/
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 algophobe

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Re: My first complete build 72 CB750 - completed for now
« Reply #251 on: March 07, 2019, 09:35:42 AM »
Good news, my submission to Outlier's Guild Moto Show in late March was accepted! Its not in the main hall next to invited builders by any means but heck I display my build for a free ticket into the show.
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now
« Reply #252 on: March 08, 2019, 09:06:45 AM »
Good news, my submission to Outlier's Guild Moto Show in late March was accepted! Its not in the main hall next to invited builders by any means but heck I display my build for a free ticket into the show.

Great! I'll be at the load in so stop by and say "Hello."

Don
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 algophobe

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Re: My first complete build 72 CB750 - completed for now
« Reply #253 on: March 16, 2019, 06:30:18 PM »
Good news, my submission to Outlier's Guild Moto Show in late March was accepted! Its not in the main hall next to invited builders by any means but heck I display my build for a free ticket into the show.

Great! I'll be at the load in so stop by and say "Hello."

Don
will do, i'm curious if the other regular submissions are riding their bike up or hauling it up to LA, then wiping them down for the show? what would you advise?

Rick
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now
« Reply #254 on: March 17, 2019, 12:06:02 AM »
Good news, my submission to Outlier's Guild Moto Show in late March was accepted! Its not in the main hall next to invited builders by any means but heck I display my build for a free ticket into the show.

Great! I'll be at the load in so stop by and say "Hello."

Don
will do, i'm curious if the other regular submissions are riding their bike up or hauling it up to LA, then wiping them down for the show? what would you advise?

Rick

The "Featured" invited builders are loading in their bikes on Friday morning.  Most of these will be trailered in.  Shinya and Kiyo are the exception to the rule -- they usually ride their show bikes in and ride them out (when the show ends).

By contrast, most of the bikes being shown on Saturday will likely be ridden in, and then cleaned up for the show.  I would probably do this.  There is limited vehicle parking around the neighborhood of The Container Yard.  You can bring a nice cleaning kit of products in a backpack.
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 algophobe

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Re: My first complete build 72 CB750 - completed for now... or not
« Reply #255 on: March 25, 2019, 07:41:42 PM »
The 3rd Outlier's Guild Motorcycle Show was this weekend and I rode by cb750 to the show with some riding buddies. I missed last year and nice to see how it has expanded. The featured builds were phenomenal. Especially this Knuckle Head street bike by Maxwell Hazan. Got my bike displayed across from Jay LaRossa's 900ss build (Jay's bike got more attention of course and casted a huge shadow over mine, oh well). Nice to meet some people I've been corresponding with via email/internet... including our very own Don. And looking forward this coming three day weekend pounding the sheet metal with Cristian Sosa.  By the way, the bike died on me heading down the 101 on the way back, fortunately the wife was on rescue with the truck and got me out from under that sketchy freeway overpass (so I guess the bike is not completed as I thought).

btw. Don was that Shinya behind you in that pic?
« Last Edit: March 25, 2019, 07:54:14 PM by algophobe »
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline 754

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #256 on: March 25, 2019, 09:03:33 PM »
 Looks like a fun show, thanks for posting the pics. Your bike looks good.
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

Offline algophobe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #257 on: March 26, 2019, 09:47:09 AM »
Looks like a fun show, thanks for posting the pics. Your bike looks good.
thanks, now if only I can get her to run consistently. I thought the gremlins were gone after 130 miles, but the 40 mile trip to downtown LA did something.
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #258 on: March 26, 2019, 11:28:54 AM »
Great meeting you at the OG Show!  It's always great putting a face with a name.  SOHC4 Members Bryan Kokkeler (BLACBikes) and ChrisBywater were also there.

The photo below has Shinya's bike in front of me (and my friend Jason).

There was some amazing top tier talent at the show (Max Hazan, Cristian Soza, Mike Woolie Woolaway, Hugo Eccles, Kiyo, Shinya, Justin Webster, Ian Halcott, Blatant Moto, Jeremy Hutch, Mike LaFountain/Raccia, Justin Martens, Anthony Robinson/Gasoline Coffee, Taylor Nash, Brandon Holstein/Speed Merchant/Brawny Built, Suicide Machine Company, Jeff Wolf, Roland Sands/Aaron Boss, Alex Earle, Dustin Kott, Ava Wolff and more).  I'm so glad you are taking Cristian's class.  Bryan Kokkeler aka BLACBikes has taken it twice and is since hand-fabricating all of his bodywork.
« Last Edit: March 26, 2019, 11:30:28 AM by SOHC4 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: My first complete build 72 CB750 - completed for now... or not
« Reply #259 on: March 26, 2019, 11:34:17 AM »
Got my bike displayed across from Jay LaRossa's 900ss build (Jay's bike got more attention of course and casted a huge shadow over mine, oh well).

To put it in perspective, Jay was an invited builder for the Golden Bolt show with that bike, and he put some $ into the Beringer gear on it.  In comparison, you have yourself a LEGIT show bike that got placed right next to a $50K custom.  Jay liked it and wanted it to have a good spot with lots of foot traffic.  You were in good company!!
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: My first complete build 72 CB750 - completed for now... maybe not
« Reply #260 on: March 26, 2019, 11:51:38 AM »
Nominated for BOTM. Can I get a second?  http://forums.sohc4.net/index.php/topic,176614.0.html
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 algophobe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #261 on: March 26, 2019, 12:39:45 PM »
Thanks for the kind words and encouragements, good perspective Don. What Cristian Sosa got going on is pretty impressive, from what I heard, Dustin Kott also took his course and the bike that Kott displayed had fairings done from what Sosa taught him. How else better to grow as a builder than influencing and teaching other builders. And what a nice guy too.
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline Godffery

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Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #263 on: March 27, 2019, 09:48:11 AM »
  Do you have more info on this one?   http://forums.sohc4.net/index.php?action=dlattach;topic=168947.0;attach=399893

Max Hazan of Hazan Motorworks in Los Angeles
It is based on a 1974-style Knucklehead built new by S&S.  Except for the wheels, brakes, suspension, tires, carburetors and bolts, Max made nearly everything else by scratch (frame, swingarm, full fairing, hand/foot controls, exhaust). 

The customer is Chinese. Max has built several bikes for Robert B. "Bobby" Haas (Haas CNC, Haas Museum) and other well-heeled clients.  Some of his bikes are functional art.  This one is definitely more functional.  Max can ride the piss out of just about any type of bike, too.  He's a proficient rider at the track.  Check out his instagram account @maxwellhazan

His current build in progress is a stretched out land speed bike powered by a Motus V4 with a blower.
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 754

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #264 on: March 27, 2019, 10:10:51 AM »
 Are you talking this bike ? Link wentvto download for Me .

If you are I like it,  but I think frame could run closer to engine under the cases.
 Indian front end, he may have built it  as a copy, the rockers look like shopmade.
I like the tank and fenders more than his other stuff.. 
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

Offline SOHC4 Cafe Racer Fan

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #265 on: March 27, 2019, 10:34:20 AM »
No, Frank, I was referring to Max Hazan's Knucklehead Superbike 
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 river

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #266 on: March 27, 2019, 11:13:43 AM »
Congrats on being in the show! Bike looks tight.
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 Godffery

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #267 on: March 29, 2019, 04:27:51 PM »
 Groovy, thanks!

Offline algophobe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #268 on: April 10, 2019, 11:57:22 PM »
well I left by bike alone for a few weeks, and she started up fine again after having died on the freeway on me on the ride back home from the show. I beginning to think that the source of the problem was that the fuel line may not be able to keep up with the demand from the carbs, especially if I didn't let the bike warm up long enough from a cold start after having opened up the petcock.  I was running stock petcock from the tank to the CR31 Keihin carbs. the way I had it was that I plugged one of the two ports coming from the petcock (which is 1/4") and running it to the middle inlet on the CR31s (which has 5/16" nipple) with an adapter to transition the fuel line. the inlet between carb 1/2 and 3/4 were capped and the line feeds into the inlet between carb 2/3. my thought is that carbs 1 and 4 are the last to get fuel after it fills up 2 and 3.

i'm trying to now use both nipples from the petcock and running two lines to the carbs and attaching them between 1/2 and 3/4 and capping the inlet nipple between 2/3.

I'm curious if any of you guys have this set up on the cb750, how you route the fuel line (pictures would be of immense help). I find that the entire line never fully fills with fuel, it settles to the level of the float bowl. I assume that it draws fuels as needed when throttle is opened with engine running. but i'm trying to avoid having the fuel line curve down below the level of the carbs and travel directly down to the carbs with gravity assisting. but there isn't too much room to do this. not sure if i'm over thinking this.

i'll post more pics up when I get a chance.
« Last Edit: April 11, 2019, 12:06:47 AM by algophobe »
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline algophobe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #269 on: May 08, 2019, 07:12:35 PM »
i'm in the process of fine tuning the carbs. From the idle to 1/4 throttle. I've currently have #65 slow get (stock with CR 31 carbs built by Dime City), they put in YY9 needles (stock for CR31s is YY8). The initial tuning I did was to lower the clip from 4th to 5th position to fix a throttle lag at 1/2 throttle turn. I tried YY8's (smaller diameter needles) and raising the clip position (to lean it out), but the bike overall ran worse... so I kept with the YY9 needles. it seems to be running rich at 1/2 to full throttle as noted by dark smoke coming from the exhaust. What's stated in Keihin manual is that all the YY needles have the same taper and Y needles are shorter. I figure that the only way I can lean her out at 3/4 to WOT is the widen the main air jet or lower the main jet. switching from YY to Y needles I think would be opening a whole can of worms that would confusing things even more. hopefully I can get her in the ball park and proceed with the spark plug chopping. input from anyone with experience with Keihin CR specials would be greatly appreciated.
« Last Edit: May 08, 2019, 07:17:40 PM by algophobe »
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

Offline algophobe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #270 on: May 08, 2019, 07:21:30 PM »
By the way I had a great time learning sheet metal fabrication with Christian Sosa a month or so ago in Las Vegas. I didn't finish the tank but learned quite a bit.  I met jeremy hutch whos had a couple bikes in Handbuilt and OGmotoshow the last couple of years. Here are some pics
« Last Edit: May 08, 2019, 07:25:46 PM by algophobe »
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #271 on: May 08, 2019, 08:54:40 PM »
By the way I had a great time learning sheet metal fabrication with Christian Sosa a month or so ago in Las Vegas. I didn't finish the tank but learned quite a bit.  I met jeremy hutch whos had a couple bikes in Handbuilt and OGmotoshow the last couple of years. Here are some pics

Both excellent guys. I’d love to take Cristian’s class.
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

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #272 on: May 27, 2019, 05:33:51 PM »
Well looks like the engines going to come out of the frame once again. I decided to run some basic diagnostic test on the bike before really digging into the carburetors to get it fine tune. I decided to check the timing which appears decent. When starting the bike from cold, she seems to have a little more trouble than before. Once she warmed up I checked the temperature of the headers with a infrared heat gun and cylinder number 4 always seems to be about a hundred degrees below the other three. So I ran a compression test. From left to right, the values were 135, 130, 130, 90. I dropped a little oil into the top of cylinder 4 re-check the compression it was shot up to 125. I do recall some issues with the 4th piston ring during initial installation, where it got caught between the cylinder and case. It may have compromised it and the symptoms appeared after some riding. Well at least this will give me the opportunity to install a frame kit with the engine out.
« Last Edit: May 27, 2019, 05:39:40 PM by algophobe »
Ducati Hypermotard 950 SP 2020 "Percolo"
Honda cb750 café 1972 "Satmui"
Kawasaki zx6r 2005 "Garuda"
Kawasaki zx7r 1998 "Dharma" (stolen)
Honda Magna V4 1982 (sold)

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #273 on: May 27, 2019, 09:13:11 PM »
Silver linings!
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 PeWe

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Re: My first complete build 72 CB750 - completed for now... maybe not
« Reply #274 on: May 27, 2019, 09:28:24 PM »
About fuel to carbs. My old Mikuni VM have also only one fuel T-pipe, 8mm. I fed it with one fuel line only from my tank with old style petcock with one pipe blocked by a short fuel hose and an M6 bolt in it.
When carbs were used in the 80's, easier with the K6 tank and petcock with only one fuel pipe.

My CB750 stock carbs and Mikuni TMR32 have both 2 fuel inlets. The latter also 8mm hose with adapters from the petcock's 6mm.

The guys in the race section might know about modifying these CR31.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967