This was shared about a decade ago, and most folks commented on the cool old catalogs. I found the diary to be a real rabbit hole. Brought back a lot of memories of the scooter scene in the early 80's. Limited or non-existant parts supplies, scavenging and cannibalizing was common. Shallow knowledge pool.
Was it really 30 plus years ago? Well, riding makes me feel young.

Www.tikiking.com/scooter/scooter_stuff.html