Start with high-confidence motorcycle repair books, then narrow by subgenre or adjacent topics.
Let's Ride
Sonny Barger, Darwin Holmstrom
Harley-davidson
Margie Siegal
Outboard Motors Maintenance and Repair Manual
Jean-Luc Pallas
Zinn & the Art of Road Bike Maintenance
Lennard Zinn
Zinn & the Art of Mountain Bike Maintenance
