A 1983 XT125 is not covered by the 1982 book. Yamaha issued LIT-11616-XT-03 for this year, again pairing the XT125 with the XT200, and the 125 carries the code XT125K.
Single-year coverage keeps things unambiguous: the figures printed are the ones for these machines, with the two models distinguished in the tables where they differ.
Scope of the manual
Routine adjustment comes first, with intervals and the values to check. Engine overhaul follows in factory disassembly order, calling out measurement points, service limits and reassembly torque. Clutch and transmission have their own procedures. Chassis coverage runs from fork service through rear suspension, wheels and brakes. Carburetor setting and ignition timing are given as sequences with figures, and the electrical chapter pairs test readings with the wiring diagram.
Check that the code on your machine reads XT125K.
