2022 Yamaha MOUNTAIN MAX LE 154 SL Service and Repair Manual

Identify the sled first: MM8N54NS is the 2022 Mountain Max LE 154 SL. Its factory manual, LIT-12618-03-85, also documents the LE 154, the LE 165 and the Transporter 800 for the same model year.

Service information is organised by system, with specifications tabulated per model so the SL's figures are distinguishable from its siblings'. Torque values, wear limits, adjustment ranges and fluid specifications are all given as numbers rather than descriptions.

Electrical diagnosis is supported by wiring diagrams and continuity checks at the connector, which is the difference between finding a fault and replacing parts until the symptom goes away. The maintenance schedule sets out the intervals for the items that decide how a mountain sled ages: driveline, suspension pivots, and the rest.