This is the current factory book for the 2026 Wolverine X4 850 EPS XT-R, catalogued by Yamaha as LIT-11616-39-23. Unlike several earlier Wolverine volumes, it is written for this machine on its own, with no sibling models folded in, so nothing in it has to be filtered by variant.
Model code is YXF85WTZTM. Read it off the machine and compare before ordering, because the Wolverine range uses codes that differ by a character or two between trims and years.
What you get is dealer-level content: the maintenance schedule, step-by-step removal and assembly work on engine and drivetrain, chassis and suspension service, brake and steering procedures, electrical diagnosis and the full wiring diagrams, along with the torque and clearance figures each step depends on.
