[Malc]

The engine had a bit of a problem on Wednesday evening. The right hand piston has melted enough to make the barrel scrap as well. The left piston looks like it had few moments of life left. Fortunately both heads are OK.

I'll post further when I work out what caused it, but as both sides have gone I would say a very very lean mixture caused by a problem with either the fuel filter or fuel pump or engine management. Another chap on the UK forum had a similar problem last week which he put down to the BBPower chip.