Author Topic: Laissez le bon temps roule...a 1978 CB750K after 11 months and the party is still rolling along.  (Read 1582 times)

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Offline PorQueNo1970

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So I joined approximately 11 months ago after taking possession of a 1978 CB750K that looked like it came out of a bayou. Thanks to the plethora of discussions and information I am happy to say that I’ve come a long way baby!

So I started with this...








The tear down went well but there was plenty of rust, especially on the right side and the #4 piston as well as the slide on the carburetor were rusted in place. Some Marvel mystery oil took care of breaking them loose.

The plan is to stay stock so the engine and carburetor rebuild went about as well as expected for a first time novice...plenty of steps back after a step forward. Everything seems to be in working order.

Since I’ve got limited space I went ahead and built a cart (got the idea from F1) so that I can move the entire project around.

I’ve also purchased a 1976 cb550 to rebuild so you’ll see a couple different tanks in the following pics. I purchased a CB750 tank off of craigslist that’s on the frame but on the bench is the 550 tank that I cut the sides out of to add knee dents in (plus I can clean out the fuel/varnish that was in there for over 15 years.) I’ve purchased the sheet metal to form the sides. My first time so this should take a while. It’s crazy what needs to done!









Anyway here’s my first project for your consideration so thanks for checking me out and all criticism is welcome...especially the harsh ones. They learn me a thing or two.

Arrivaderci


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Offline SOHC4 Cafe Racer Fan

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Are you able to hone and stay with the stock displacement or are you going slightly over?
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 PorQueNo1970

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Are you able to hone and stay with the stock displacement or are you going slightly over?

I’m staying with the stock displacement. The guy That gave me the motorcycle is an old Honda mechanic and runs a machine shop at our employer. He’s been keeping an eye on me and I’ve been able to bring components in to sneak onto machines and to check tolerances.


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Offline PorQueNo1970

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Moving right along...

The motor is almost complete but I moved onto one of the tanks I’ve got. Once I manned-up,  cut it, then thought about how to tackle the next steps and filling up the cooler now I’ve got to cut and shape the steel for the gap.

Been a blast so far!


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Offline 02z06dave

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Nice job on the tank so far. It's going to look cool

Offline PorQueNo1970

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