I too read the thread on Mr Bonnars rebuild and used some of the info today when I set the timing. Progress so far has been to clean all the fins, set the valves, points and timing. The piston and bore look ok just a bit of carbon that needed to be cleaned off the top of the piston and the combusrion chamber. I intend to clean it a bit more and give a new paint job. However I have it almost all back together to give it a test run to confirm it runs ok before putting more time and money into it.