Are you making any headway on these parts?
I find myself in need of 770. I don’t know what it is or what it does. Thought I could make one if I had some dimensions.
I noticed Wayne Mahaffey has 763.
I have 762. It’s fairly involved piece, so I don’t know how to communicate about it. Perhaps if you asked questions perhaps I could answer them.

Part 770 is unnecessary. I have assembled many of these without it, never a problem. Wayne has all the parts for this style of throttle, and his rotating tube is made out of a thicker than stock material, and works excellent.

Simplex never used a rope pull start.  Those parts probably come from an outboard motor, as Wico supplied a lot of the magnetos for various outboard manufacturers. 

Until the 1947 model year, all Simplex’s were push start.  Kick start was added for the 1947 model year, and Simplex made kits to retro fit 1945-46 bikes with a kick start.

I will be there Sunday!

Did you ever get around to posting photos with the kickstarter attached to your bike’s motor? I’d love to see how much t looks and in action

Here is a picture of Wayne’s kickstarter modified to fit a Honda GS190 motor.

The cylinder on a 1948 is cast iron. Post a picture of what you have.

You have to lay the bike over all the way in its side. You will never get it all out without removing the tank.

I run my bikes at 40:1, usually using Echo oil. 

and that is why I always encouraged everyone to use the website picture posting, as they should last as long as I keep paying for the website!