1973 Yamaha AT3 Service and Repair Manual

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Final year for the AT3, and still the same reference: Yamaha LIT-11613-14-01. Model code AT3.

What makes this book worth keeping is its span. Written for 1971 to 1973, it documents the AT1 and AT2 as well as the AT3, then continues through the CT1, CT1C, CT2 and CT3 and the LT2 and LT3. Anyone with more than one of these small two-strokes in the garage is working from a single source.

The procedures are Yamaha's own. Engine and gearbox dismantling in order, wear limits and clearances, assembly torque values, carburettor jetting and ignition specifications, full wiring diagrams, and troubleshooting tables that start from the symptom. It reads plainly and assumes you have tools and a means of measuring. Match the code stamped on your frame to the list, then follow the section that names it.

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