Piston melt

It has been quiet here lately as I was away at this Wheels and Waves event. It was really good I will post some pictures later. We rode back from france but the BSA gave up after about 1000km. The magneto fell to bits. Screws came off, strap loosened, timing got messed up and here's the result. Made it from London - Portsmouth - Santander - Biarritz - Calais.