1971 Yamaha DT1S Service and Repair Manual

LIT-11612-14-99 is the number on the factory service manual for the 1971 DT1S. Yamaha covered the DT1A, DT1B, DT1C and DT1E in the same volume, treating the 1971 DT1 range as one service family.

Frame code first: DT1S. With that confirmed, every clearance, torque value and adjustment in the book applies to the machine in front of you.

Inside

• Engine removal, teardown, inspection and reassembly in factory sequence
• Service limits for pistons, bores, bearings and shafts
• Torque specifications
• Ignition timing and carburettor settings
• Wiring diagram with electrical test values
• Symptom-led troubleshooting

This is reference material for real work, not a general-interest history of the model. If the bike is apart on the bench, the numbers you need to put it back together correctly are in here.