you are correct Bill I think something is missing too. Normally from that angle you would see part of the air cleaner and carby sticking up at least but looking at the photo you could be right and the head has been removed. But again it would have been easier to remove it if the bonnet was removed first.
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Cheers
Cliff Hutchings
aka MrRoo S.I.R.
"and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night"
MrRoo says "TRUCKS ROOLE"