First start in 40 years - Kawasaki Z1B 900 engine

I this video I start a 1974 Kawasaki Z1B 900 out of the bike and for the first time in over 40 years. I go through some basic checks and rig up the engine for starting out of the bike. There was no evidence that this engine had ever been apart since assembled in Japan at the Kawasaki factory in 1974. I take it over to my mate Henrys farm to run it up and give it a proper rev up.