2021 Yamaha VK PROFESSIONAL II Service and Repair Manual

The 2021 VK Professional II is coded VK1NFPMB, and Yamaha documents it in part number LIT-12618-VK-04.

That same manual carries 2018, 2020 and 2022 as well, along with the EPS version of the sled. It is worth confirming your code rather than working by year alone, since the tables are organised around the code and neighbouring years are not always identical.

Chapters run in the factory's own order of work. Maintenance intervals open the book, then engine service with disassembly steps, measurement points, wear limits and torque figures. Fuel injection and cooling follow. The drive train section deals with clutch, chaincase, track and slide rails, and the suspension chapter covers adjustment as well as repair. Electrical work closes it out, with wiring diagrams and the test values needed to condemn a component instead of replacing parts in sequence.