..........Interesting to see how they "customize" their exhaust pipes ..............
But did you notice that the ones used on his twin engine set up were not the same, they had welds in them......also the Enfield sprockets he had machined?

ended up being Reynold duplex sprockets...and using a pin for the drive!!!! he would have been better off using the original items and getting splines milled onto the shaft.
Another thing while I'm at it....why refer to the engine as an cast iron engine, when it's only the barrel that's cast iron.
It's an interesting series though, if only to pick faults...
Dave.