2022 Yamaha VK PROFESSIONAL II Service and Repair Manual
VK1NFPNB is the model code for the 2022 VK Professional II, the last year inside Yamaha manual LIT-12618-VK-04.
The book also serves 2018, 2020 and 2021, and it documents the VK Professional II EPS, whose steering hardware is treated separately where it has to be. If you have both sleds in a fleet, one reference answers for them.
The material is what a Yamaha dealer technician works from: engine teardown with measured tolerances and stated torque, fuel injection and cooling service, clutch and chaincase procedures, track tension, alignment and slide rail replacement, suspension adjustment, chassis repair, and a complete electrical chapter with wiring diagrams. Symptom-based troubleshooting sits at the back for the faults that do not announce themselves.