2020 Yamaha WOLVERINE X4 Service and Repair Manual

Two 2020 machines share one book: the Wolverine X4 and the X4 XT-R are both documented in LIT-11616-33-42. Yamaha assigned the X4 model code YXF85WPHLH, and that is the code to look for in the specification tables when a figure differs between the two.

The manual is organised the way a job is: identification and maintenance schedule at the front, then engine, drivetrain, chassis and electrical sections, then the diagnostic material. Torque specifications, service limits, wear measurements and clearance figures are given as values rather than as advice, so you can measure a part and decide whether it goes back in.

Wiring diagrams are included for the complete machine. If you are chasing a fault through a harness, they show connector positions and circuit colours as built, which is usually faster than tracing by hand.