Hey guys, I am relatively new here. I recently bought a CB750F that was as termed by a member to be a "Bitsa." The bike is a 1976 CB750F with a 1978 CB750K motor in it. One of the original owners did a four corners ride and blew the original motor out and replaced it with the 78. The carbs are from the 76 F and various other things were swapped with 78 parts. The bike was bought as a non-runner for $450. The non-running part was quickly fixed the day after buying it. However, I was having idle problems that are possibly due to carbs. So in that spirit, I decided it would be a good bike to do the whatever I wanted to do to it as it doesn't hold any value as a numbers matching bike.
The plan (now):
- I am currently in college and away from home where all my metal working tools are. (grinders, welders, plasma cutter, acetylene torch, etc..) So for the time being the bike will be getting a once over and all the parts cleaned up. I will be doing a top end build on the motor and carb rebuild so that the bike is ridable and looking better than when it was bought. I will be making my own seat, adding clip-ons, upgrading the master cylinder to a newer model one. (my master cylinder is leaking like a faucet and have heard horror stories of rebuilding them). Stainless braided brake lines will be added ( mine are rotted and cracked). as well as doing some other little touches that will make the bike look better.
The plan (future)
- Completely tear down the bike for a second time and do a complete all-inclusive build on it. I will chop all unnecessary brackets off the frame as well as weld in new bracing. I plan on upgrading to either a CBR100RR or R1 front end including brakes. I will also either adapt a Rear end off of one of those bikes or make a new rear end to utilize the wider set up and braking. Wire wheels will be fitted to keep with the theme. Once the frame and suspension is take care of the engine will receive a COMPLETE rebuild. I am still up in the air if I want to do a complete hotrod engine (836 kit, lightened crank, CR carbs, cam, flow the heads, etc.....) or do a mild build. I am leaning towards the hotrod engine to go with the suspension. Once that all is done I will do lots of body mods. I will make my own seat pan, rear fender, front fender out of carbon fiber And will do a carbon fiber overlay on the tank. These parts will not be bare carbon, they will be painted with some carbon showing through in some pattern. Other things will be added to the list once I start riding it and figuring out what I want to change on the bike.
I have worked on cars my entire life but this is my first build on a bike. I will be looking for help from you guys when I run into a problem with part interchangeability and just help in general. I look forward to sharing the first "college budget" build with you guys and eventually sharing the "all-inclusive" build with you all.
Let the picture posting begin.....
How she looked when I bought her.....
The problem....
The teardown...
My new favorite tool...
I am currently on the cleaning and reassembly process. I will get some pictures up later of the cleaned up frame and where it stands right now. I have to order order my carb parts (hondaparts-direct) and top end gasket set (Cycle-exchange). I will be going home for the winter break so progress will come to a halt until I get back on the 5th. hopefully I will have the gaskets and parts ready to go when I get back and I will get her together quickly once the motor is together.
Tell me what you think. Cheers!
