Vintage Horticultural and Garden Machinery Club

Many thanks for yet more useful facts and suggestions. To Andy – yes you are right : my photo shows me holding the outer rim of the flywheel which I have cut away in an attempt to get better access to points and for heat. My post on Feb mentions this . The steel shaft of the f/wheel assy. is still siezed onto the crankshaft.
To Grahame: Thankyou for telling me about Mr Kettering. The site of DENSO shows a neat drawing
of the circuit. I find that Mr Kettering was American, probably not connected to the town in
Northants – which I know well having lived in Market Harborough for may years. Thanks also for pointing out that a six volt ign. coil will be just as good as 12v. I happen to have a 6v recharg.
battery salvaged from some long forgotten scrapped machine
If I might digress, I am intrigued by the need for contact breaker points in the system. On my 2 – stroke strimmer and my Briggs & Stratton 4 – stroke lawn mower. the ign, coil is similar to Villiers, and the magnet on the flywheel whizzes past it (as close as card thickness) and this makes a spark; there are no opening contacts and, I think, no capacitor. Similiarly, on DENSO circuit for Mr Kettering, no capacitor is shown. In the Old Days I used to think that a cpacitor in this sort of circuit was included to eliminate high frequency static which would interfere with reception on the newfangled television sets. Maybe that was for some other machines.
Best wishes to all……….Dave