Topic: 1973 CB750 Rescued from backyard

[NagChampa]

Greetings, found myself a really rough CB750K3 on Kijiji a short while ago. Went to look at it and bought it on the spot. It is in very rough condition from sitting exposed to the elements for about 10 years.

This motorcycle had a sidecar installed that was removed at some point. The lower bar that attaches to the right side passenger peg has a nice little bend in it that I can only assume came from a sidecar incident.

Have a very good feeling this was owned by a few reckless hard drinkin' junk collectors in its day.

So far, I am stripping it down and plan to re-wire, re-build and take my time doing it. Frame will be powder coated at some point. There are a few issues as you will see in a few of my photos.

Not sure what direction I will be going with this build. Currently looking for a complete G1100 front end.
Hopefully there will be a nice new TIG welder in my future.



As I brought it home



Dirty



What is left of the sidecar mounts



This is one of many reasons I decided to rewire this bike, pulled about 3 lbs of red automotive wire out of this bike. Nasty!



Bad stick welding job



After a few hours alone with her
 

That is it for now, hope to learn lots here on SOHC4

[vintagehonda750]

Progress is looking good. Welcome aboard and good luck with the project.

[kghost]

Welcome.

Have fun with your new project.

[NagChampa]

Thanks guys, very excited about building this bike.

[Terry in Australia]

Fantastic basis for a project mate, get it running before you plan too far ahead. Cheers, Terry.

[kghost]

Fantastic basis for a project mate, get it running before you plan too far ahead. Cheers, Terry.

+1

Always best to see if its viable before getting too far into it.

I always make them run right...then make it pretty.

[tool14]

welcome,great place to learn.

[70CB750]

Welcome!

[NagChampa]

Fantastic basis for a project mate, get it running before you plan too far ahead. Cheers, Terry.

+1

Always best to see if its viable before getting too far into it.

I always make them run right...then make it pretty.

Good advice guys! I plan to rebuild the carbs as well as pull the motor and trans apart. The wiring was hacked apart and patched up with red automotive wire, had no idea what was connected to what. Imagine about a hundred hand tied pigtails with electrical tape for insulation. There was also a short run of wire used to replace a fuse. There is a lot of work to be done before I wake this beast. Just drained the oil and it did not look too bad. Debating having the frame powder coated while the engine is out.

I really Have to start a thread soon.

[Terry in Australia]

Isn't this a thread?

[Vincent P]

Welcome,

Looks like you have quite the journey ahead; you came to the right place, and it will be nice to see this bike transform from old neglected to new!!!

Good Luck,
Vincent

[NagChampa]

Thank you for the words of encouragement Vincent.

Bought an impact screwdriver on the weekend, worked great on freeing up the screws on the clutch case including one that was badly stripped. It was almost round, loaded the robertson head in the impact, gave it a few taps with a hammer and out it came. Not so lucky with one exhaust flange.
 

What I started with



Chewed up wiring harness, this thing was hacked apart so much, lets me know why it was not being ridden, that and the hole in the crankcase.



Where I am now. If I can trick a couple of people into helping me remove the motor, I would be in an even better place. Still waiting for my brother to bring his motorcycle jack here, do not have a center stand. Do not want to lay the frame down to remove the engine because the sidecar mounts do not allow the frame to get close enough to touch the ground. Do not want to risk damaging this motor more than it is already.  Want to remove the forks and strip the frame bare.

Hope to get more pictures up soon, have to clean up my workspace.

[Vincent P]

My pleasure,

Always willing to help a fellow Ontarian, and fellow 73 owner