The YS624T/WM is documented in Yamaha part number LIT-19616-00-16, a book it shares with the YS624T/W and the YS828T/WM. Coverage is tagged by model code, so the WM-specific figures are identifiable without cross-referencing a second source.
Repair material runs from engine work — valve clearance, carburettor, ignition, torque sequences — through the auger and impeller drive to the traction system and the control linkages that set chute and deflector movement. Belt tension, cable adjustment and friction-disc condition are all given with the values Yamaha specified.
Electrical diagrams cover starting and any lighting circuits fitted. Troubleshooting is organised around what the operator reports, which is how a machine that will not self-propel or will not throw snow properly actually presents itself.
Confirm YS624T/WM on the data plate before ordering.
