It looks like someone took a pull start unit and tried to use it on a non-pull start engine. The crankpin on the crankshaft (where the connecting rod slips onto) needs to be longer so that it engages the slot in the pull start disc. So thus it won't work like shown in the pics.
Anyway, you'll need a different crankshaft for that, if they make one for that engine. othewrwise you have to use a car electric starter stand to fire up the engine. Now if the flywheel has a decent groove, you may be able to use a cord to start it off the flywheel, that was the old fashioned method many years ago, before they came up with electric starters or pull starters for the engines.