Honda Z50, C70, CL70, CT70, SL70, XL70, S90, SL90, ST90, CL90, CT90, CT110 Repair Manual 1965-1999

• Honda Z50A, 1969-1978
• Honda Z50R, 1979-1989, 1991-1999
• Honda S65, all years
• Honda C70, 1980-1983
• Honda C70M, all years
• Honda CL70, all years
• Honda CT70, 1969-1982
• Honda SL70, 1971-1972
• Honda XL70, 1974-1976
• Honda S90, 1973-1975
• Honda SL90, all years
• Honda ST90, 1973-1975
• Honda CL90, all years
• Honda CL90L, all years
• Honda CT90, 1969-1979
• Honda CT110, 1980-1984, 1986

A motorcycle, even in normal use, is subjected to tremendous heat, stress and vibration. When neglected, any bike becomes unreliable and actually dangerous to ride. To keep the bike properly maintained, look into the tune-up tools and parts and check out the different lubricants, motor oil, fork oil, locking compounds, and greases (Figure 1).

Also check engine degreasers, such as Gunk or Bel-Ray Degreaser, for cleaning your engine prior to working on it.

The more you get involved in your Honda, the more you will want to work on it. Start out by doing simple tune-up, lubrication and maintenance. Tackle the more involved jobs as you become more acquainted with the bike.

The Honda singles covered in this book are some of the most reliable bikes available, but to gain the utmost in safety, performance and useful life from them, it is necessary to make periodic inspections and adjustments.

Often, minor problems are found during such inspections that are simple and inexpensive to correct at the time, but which could lead to major problems if not corrected.

This chapter explains lubrication, maintenance and tune-up procedures. Table 1 is a suggested factory maintenance schedule (Table 1-10 are located at the end of this chapter).

• General Information
• Troubleshooting
• Lubrication, Maintenance and Tune-up
• Engine
• Clutch and External Gearshift Linkage
• Transmission and Internal Shift Mechanism
• Fuel and Emission Systems
• Exhaust System
• Electrical System
• Wheels, Tires and Drive Chain
• Front Suspension and Steering
• Rear Suspension
• Brakes
• Body and Frame
• Wiring Diagrams