A Pozidrive No2 screwdriver is very valuable if you need to remove a carb top. The cross head driver in the BM toolkit is not the correct fit for these carb screws which can be VERY resistant to removal. Wrecking the screwheads could make a minor problem into that interesting challenge of drilling out steel screws from an alloy casting. Tricky when you're in the field. Oh what fun

I once had a diaphram tear during a European tour, although it was a big boxer not R65. Once the carb top was off the diaphragm was fixed with SuperGlue. Just goes to show.
So don't forget to add a tube of SuperGlue to the toolkit tas well.