MM8N65ENS is the long-track 2022 Mountain Max LE, and Yamaha documented it in LIT-12618-03-85 together with the LE 154, the LE 154 SL and the Transporter 800.
On a 165 the rear suspension and drive system see the hardest life, and those chapters are where the factory numbers earn their keep: track tension, alignment, wear limits on the slide rails and the drive components, and the torque figures for the fasteners holding it all in place. The engine and clutch sections follow the same pattern, measurement before replacement.
Electrical faults are traced with the printed diagrams. Maintenance intervals are listed rather than suggested.
One book, four machines, and the model code is how you keep them straight.
MM8N65ENS in the specification headings is what tells you a figure was written for the long track rather than for the 154 printed in the next column. The engine, fuel and clutch chapters carry the same measure-then-decide structure as the rest of the volume.
