My first bike was a Rickman Bultaco Metisse. Then a new Pursang in 72 as well as a 360 El Bandido. Since then I've always had a Bultaco. A few years ago I traded my old lathe for a Mk10/192 250cc Pursang. The Mk10/193 is very similar except it's a 370cc. Both cool bikes and will get restored at the ...

Had a good time at the WVM bike show in Lynden this past weekend. Lots of cool bikes and goodies. I think around 100 or more entries. Larry and I took seven bikes over. I hadn't planned on buying anything but came home with another Pursang. Another project

Oops, I meant Italian.
I find that if I 'zero' the chuck on the rotary head with a pointer then I can move the 'x' or 'y' axis to the cutting position. I've only done simple machining with the rotary, never any odd number cuts like in some splines.

Someone actually makes mistakes like me??? Interesting that you find a mix of metric to sae threads on a German bike. Be glad you aren't dealing with Brit bike that has combos of all threads.

Looking good. What is the reason for the additional flywheel near the right connecting rod?

I've got a perfect match for your extra motor.

The coarse thread usually is usually anchored in place. Gives a better bite in aluminum. The finer thread is better for holding tightness of the parts. I now have a complete set of ss screws for the covers. I have several boxes of fillister head screws in an assortment of sizes so decided to modify ...

The video explains the situation clearly.