This repair manual is for the Yamaha 80-175cc Piston-Port spanning 1968-1976. You can see the specific models covered by year below. It is 168 pages and catalog number M410.
Clymer Repair Manuals are the Number One Source for Repair and Service Information!
Clymer repair manuals are written and edited by industry experts so the do-it-yourselfer as well as the experienced mechanic will be able to follow the reliable step-by-step technical information. Each manual is based on a complete disassembly of the machine(s) being covered. This level of detail, along with hundreds of photos and illustrations, guides the reader through each service and repair procedure.
If you are involved in the repair and/or service of motorcycles, ATV's, snowmobiles, jet skis, marine engines or outdoor power equipment, you should have a Clymer repair manual as an essential tool.
Every Clymer Repair Manual contains the following:

Handy thumb-tabs put the chapter you need right at your fingertips.

Detailed substeps expand on repair procedure information

Notes, cautions and warnings throughout each chapter pinpoint critical information.

Numbered instructions guide you through every repair procedure step by step.

Bold figure number help you quickly match illustrations with instructions.

Detailed illustrations, drawings and photos guide you through every procedure.

Enlarged inset helps you identify and examine parts in detail.

Numbered table of contents easy to use so that you can find the information you need fast.
Clymer repair manuals also make it easy to diagnose and repair problems with your machines electrical system. Troubleshooting and electrical service procedures are combined with detailed wiring diagrams (color on select titles) for ease of use.

MODELS COVERED YEARS COVERED
GT1 1973
GTMX 1973-1974
GT80A 1974-1976
GT80MXA 1974-1977
YZ80 1974-1976
YZ100 1976
DT100 1974-1976
MX100 1974-1975
AT1 Series 1968-1970
AT2 Series 1972
AT3 1973
ATMX 1973
DT125 1974-1976
MX125 1974-1976
YZ125 1974-1976
CT1 Series 1969-1972
CT2 1972
CT3 1973
DT175 1974-1976
MX175 1974-1975