the first engine spec code 402x indicates a mark 2 midget engine and the b6698 is the
part number for the cylinder. the 407x spec is for a 5g engine and was supplied to pace.the spec codes tell the company supplied to and any special components for them.402x = Villiers with d119au inlet pipe,m2530d starter pulley,s12 carby and a 3'1''
cable. 407x = pace, with s10 carby,d169au inlet pipe and d180au silencer.the parts book indicates the cylinder number as c9095 not g3095,so maybe this was a special order.regards,john
