1975 Yamaha YZ80 Service and Repair Manual

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LIT-11624-62-01 is the original Yamaha service manual for the 1975 YZ80, model code YZ80B. It stands alone; no other year is included.

Engine coverage gives the piston and cylinder dimensions, clutch and transmission procedures and the sequence for splitting the cases, with carburetor settings and ignition timing as specified when the bike was built. The chassis sections deal with fork and shock service, wheel and brake work, and the torque values for frame and engine fasteners.

Small two-strokes of this era were kept alive with whatever parts came to hand, so the frame stamping is worth reading before you trust any dimension. If it shows YZ80B, this literature matches, and LIT-11624-62-01 is the number to quote when you are hunting original components for the rebuild.

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