Proper engine rebuild etiquette....

 I made a bracket in order to mount the motor on an old car engine stand I had lying around.  Now I am ready to tear into the motor and start replacing gaskets and seals.  And painting and polishing different parts. This is the first time doing a DOHC CB750 motor so should be fun.  I also have a CB900f waiting in the wings. This will be much better then when I did the CB350, I had that motor on a bench and kinda rolled it around to work on it.  It was about half the size of this pig and still pain.  This will be much better.  As I side note I discovered that I am getting older as I started muscling this sucker around and discovered today that I toasted my back.  Gonna need one of those lift chairs from the old folks home real soon!

Sprinkle Sprinkle

Drilled and countersunk for style.  I showed this to one of my friends and he thought I was making a sprinkler.....

Strip Show

OK, final mockup done on the cb750. It's time to tear it down. Stripping all parts, labeling and bagging fasteners. This part goes fast. Nice! Not sure what to call this style, sorta bratstyle but bobberish too?

...and stripped! Just the forks and engine to go! Then start reworking parts and welding mounting tabs on the frame for the tail section.

More pics

An Early on tail shot....

Later rear shot. I am debating whether or not to even mount the speedo.

First attempt at speedo bracket. I ended up making another before I liked the results...

Forward Progress

So next I made a bracket to mount the stock speedo in the center of the top triple clamp and also made a bracket to mount a smaller 6" headlight on the bottom clamp. In addition I mocked up a tail section out of cardboard then welded it up. I am also made a battery box and will be mounting it up behind the carbs to help empty out the back frame area of the motorcycle. At this point I have also added new bars and a new throttle to clean up the front end. Also I machined down a lot of extra Aluminum off the handlebar clamps to help clean up the top tree area as well.

Step one, amputate

I decided to try out a solo seat approach and went ahead and lopped off the back frame rails that extend over the rear tire. Here is the first mock up after that little operation. At this point I perched a tail section off another bike on the rear to see how it would look. I have also removed that large ugly headlight and other misc, parts. No, I didn't paint the tank, it's still rusty green on the other half!

Distractions Arise

OK, time to update this puppy. I was working on a bike for a fellow and he hit a tight spot and couldn't pay for the parts for it so I decided to go ahead an buy it off him. It is a 1980 CB750C. I was going to do a quick repair and sell it, but since winter was coming on decided to go ahead and mod it up a little.