That starter rope guide looks interesting it reminds me of the 16 inch Whirlwind mower with the pulley wheel attached to the side of the handle bars.
One of the problems I have heard with the Boundy motor was that the small push rod that opened the points wore out then the points won't open ,I haven't seen any specs on push rod length , I would guess making a custom length push rod is the only way to get the ignition timing right once the push rod is excessively worn.
