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Author Topic: 1971 CB750 Cafe (1st Ever) Build, Texas Style  (Read 3111 times)

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Offline driveallknight

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1971 CB750 Cafe (1st Ever) Build, Texas Style
« on: April 07, 2015, 06:04:36 PM »
So I have had this thing for 2 days now. Took unnecessary stuff off and got to cleaning. Started with forks and some of engine. Damn this thing is a dirty #$%*. Coming from a cycling background, I used the method of citrus degreaser and tons of scrubbing with a few sprays of water from a sprayer with wiping down. Let me know if this is a bad method for motorcycles.

My friend who has a 75 750 rebuilt, cleaned, rejetted, etc, the carbs and is syncing them soon.

Heres it cleaned up prior to purchase (but not running)







This is how I bought it:




Today:





Also, anyone know what this corrosion is and how to get it off?
Second, it appears the PO had clear coated the head (or does it come like that) and its flaking off. Any good way to clean that?



Will keep cleaning first and hopefully Hondamans book will arrive by then so I can have some sense of reassurance.

I guess at this point to get her running I need:
Get the tank sealed (with new petcock and fuel lines)
new batt, wiring harness (maybe? the old one is pretty #$%*ty), Should I get new rectifier/condenser/coils/solenoid etc?
Re-connect controls and cables on handlebars

Ill keep chuggin along, sorry for all the questions, thanks yall for all the help!
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Offline Stev-o

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #1 on: April 07, 2015, 06:12:28 PM »
Welcome from Lake Travis, where are you?

The head cover came cleared from the factory, use aircraft stripper to remove it, then sand, buff and polish to the finish you like.

Use Caswell to seal the tank if needed, Scorpion AGM batteries are excellent. Once you get a good battery, you can check your system.  I may have the parts you need.  Interested in the seat if you are not going to use it?
Do you need handlebars?
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline driveallknight

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #2 on: April 07, 2015, 06:32:57 PM »
Quote from: Stev-o on April 07, 2015, 06:12:28 PM
Welcome from Lake Travis, where are you?

The head cover came cleared from the factory, use aircraft stripper to remove it, then sand, buff and polish to the finish you like.

Use Caswell to seal the tank if needed, Scorpion AGM batteries are excellent. Once you get a good battery, you can check your system.  I may have the parts you need.  Interested in the seat if you are not going to use it?
Do you need handlebars?

Im up in Lubbock (at least rust isnt really any issue)

I just got clubman bars (kind of hard to see in above photo). I am not going to use the seat, F/R fenders, F/R turn signals, or chain guard if you're interested.

Thanks!
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Offline Stev-o

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #3 on: April 07, 2015, 06:44:48 PM »
Lubbock fairly close, only 6 hours or so!   I also have a K1 that I will start on soon and could use the seat.  What are you doing for a seat?

Not familiar with the SS exhaust, maybe one of the other guys might know about it.
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline driveallknight

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #4 on: April 07, 2015, 06:58:22 PM »
Quote from: Stev-o on April 07, 2015, 06:44:48 PM
Lubbock fairly close, only 6 hours or so!   I also have a K1 that I will start on soon and could use the seat.  What are you doing for a seat?

Not familiar with the SS exhaust, maybe one of the other guys might know about it.

Good deal! Just keep in touch when you need it!

Im going with this guy's seat: http://www.twinlinemotorcycles.com/?page_id=2105#!/Seat-No-2-Fast-Back-Universal-Cafe-Racer-Seat-CB750/p/12776251/category=2909361

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Offline SOHC4 Cafe Racer Fan

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #5 on: April 07, 2015, 07:53:03 PM »
Quote from: driveallknight on April 07, 2015, 06:58:22 PM
Quote from: Stev-o on April 07, 2015, 06:44:48 PM
Lubbock fairly close, only 6 hours or so!   I also have a K1 that I will start on soon and could use the seat.  What are you doing for a seat?

Not familiar with the SS exhaust, maybe one of the other guys might know about it.

Good deal! Just keep in touch when you need it!

Im going with this guy's seat: http://www.twinlinemotorcycles.com/?page_id=2105#!/Seat-No-2-Fast-Back-Universal-Cafe-Racer-Seat-CB750/p/12776251/category=2909361

That's my friend Ian Halcott.  Very talented metal fabricator, motorcycle builder and tuner.  You will be very happy with the quality.  Are you going with steel or aluminum.  I have steel on my Nine Lives 750 and aluminum on my Bionic Mongrel 750. 

Ian also does a trick seat with the oil tank built into it.
« Last Edit: April 07, 2015, 07:54:56 PM by CB750 Cafe Racer Fan »
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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 driveallknight

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #6 on: April 07, 2015, 09:05:04 PM »
Quote from: CB750 Cafe Racer Fan on April 07, 2015, 07:53:03 PM
Quote from: driveallknight on April 07, 2015, 06:58:22 PM
Quote from: Stev-o on April 07, 2015, 06:44:48 PM
Lubbock fairly close, only 6 hours or so!   I also have a K1 that I will start on soon and could use the seat.  What are you doing for a seat?

Not familiar with the SS exhaust, maybe one of the other guys might know about it.

Good deal! Just keep in touch when you need it!

Im going with this guy's seat: http://www.twinlinemotorcycles.com/?page_id=2105#!/Seat-No-2-Fast-Back-Universal-Cafe-Racer-Seat-CB750/p/12776251/category=2909361

That's my friend Ian Halcott.  Very talented metal fabricator, motorcycle builder and tuner.  You will be very happy with the quality.  Are you going with steel or aluminum.  I have steel on my Nine Lives 750 and aluminum on my Bionic Mongrel 750. 

Ian also does a trick seat with the oil tank built into it.

Glad to hear good things. Im going with steel. Im thinking the bare metal look with the seat and tank will be awesome. We shall see though.

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Offline driveallknight

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #7 on: April 07, 2015, 09:12:18 PM »
Quote from: CB750 Cafe Racer Fan on April 07, 2015, 07:53:03 PM
Quote from: driveallknight on April 07, 2015, 06:58:22 PM
Quote from: Stev-o on April 07, 2015, 06:44:48 PM
Lubbock fairly close, only 6 hours or so!   I also have a K1 that I will start on soon and could use the seat.  What are you doing for a seat?

Not familiar with the SS exhaust, maybe one of the other guys might know about it.

Good deal! Just keep in touch when you need it!

Im going with this guy's seat: http://www.twinlinemotorcycles.com/?page_id=2105#!/Seat-No-2-Fast-Back-Universal-Cafe-Racer-Seat-CB750/p/12776251/category=2909361

That's my friend Ian Halcott.  Very talented metal fabricator, motorcycle builder and tuner.  You will be very happy with the quality.  Are you going with steel or aluminum.  I have steel on my Nine Lives 750 and aluminum on my Bionic Mongrel 750. 

Ian also does a trick seat with the oil tank built into it.

I also just realized that your youtube of the Nine Lives is how I even learned about Ian, small world!
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Offline SOHC4 Cafe Racer Fan

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #8 on: April 07, 2015, 09:24:43 PM »
That's cool. Isn has been going non-stop the last 6weeks without a day or night off, keeping up with orders, building a CB750F and a Ducati for The Handbuit Show.
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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 Stev-o

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #9 on: April 07, 2015, 09:29:56 PM »
Quote from: CB750 Cafe Racer Fan on April 07, 2015, 09:24:43 PM
That's cool. Isn has been going non-stop the last 6weeks without a day or night off, keeping up with orders, building a CB750F and a Ducati for The Handbuit Show.

The Hand Built show is in Austin this weekend.  You guys should come out!

http://www.handbuiltmotorcycleshow.com

MotoGP races at the F1 track are also this weekend....woohoo!
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'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline SOHC4 Cafe Racer Fan

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #10 on: April 07, 2015, 09:51:58 PM »
In the last 60 days, Ian has been going full blast on this Ducati. Check out the rendering and the almost completed project. Handshaped aluminum tail, headlight nacelle, belly pan ama fork shrouds, and custom chrome-moly trellis subframe and girder fork.
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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 callmejarob

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #11 on: April 08, 2015, 06:30:33 AM »
Im over here in Dallas!  I was really hoping to make it to the hand built show this year but won't have the time.
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Offline Davidov

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #12 on: April 08, 2015, 06:46:43 AM »
Looks good, and another welcome from Texas!
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-David

Offline driveallknight

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Re: 1971 CB750 Cafe (1st Ever) Build, Texas Style
« Reply #13 on: April 08, 2015, 07:31:35 AM »
Was going to come down (Im from Austin) but none of my buddies wanted to go to MotoGP with me (some friends?!)

One of my friends here in Lubbock is putting on a cool bike event in Marfa in May, yall should check it out: http://www.thebigbender.com/

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