For a complete Service Manual, Owners Manual and Wiring Diagrams for the PP1 Honda Beat, you can check out the Dutch Beat group at the link below:
PP1 Honda Beat Service Manual & Wiring Diagrams
https://hondabeat.nl/service-manual-91-5/
PP1 Honda Beat Owner's Manual
http://hondabeat.nl/user-manual/
PP1 Honda Beat Commercial Information:
https://hondabeat.nl/commercial-info/