1973 Yamaha AT2 Service and Repair Manual

Service data for the 1973 AT2 sits in Yamaha's LIT-11613-14-01, a manual written to cover several closely related models rather than one. The machine's code is AT2.

The models named in it are the AT1, AT3, CT1, CT1C, CT2, CT3, LT2 and LT3, across the 1971 to 1973 model years. Yamaha treated them as one service family, and the chapters are laid out accordingly, with model callouts where a figure or a step is not shared.

Expect the full workshop treatment. Maintenance intervals, engine and transmission overhaul with inspection limits, fuel and ignition settings, torque specifications, wiring diagrams and troubleshooting tables. For an owner, the practical test of a manual like this is whether it answers the question at the bench, and this one does because it gives numbers instead of recommendations. Check AT2 against the fitment list before you start.