1971 Yamaha DT1 Service and Repair Manual

Yamaha grouped its early enduro singles into one service manual, LIT-11613-08-01, and the 1971 DT1 belongs to it. The code on the machine is DT1.

That volume runs from 1971 to 1973 and covers the DT2 and DT3 along with the RT1, RT2 and RT3. The DT and RT machines share their design approach closely, so the chapters are written once and annotated where a model needs a different figure.

Content is the dealer reference: engine and gearbox disassembly and reassembly order, wear limits and clearances, carburettor jetting, ignition timing, torque specifications, wiring diagrams and troubleshooting steps. On a bike with this much history behind it, having Yamaha's own numbers is what keeps a rebuild honest. Verify the DT1 code before working to any specification here.