This comprehensive Mazda 121 Workshop Service Repair Manual provides detailed instructions and technical specifications for both 1990 and 1991 model years. It is a valuable resource for mechanics, technicians, and anyone seeking to understand and repair their Mazda 121. The manual covers a wide range of topics, including general maintenance, troubleshooting, engine service and repair, transmission service and repair, brake system, wiring diagrams, electrical system, suspension, periodic lubrication, steering, cooling system, fuel injection, fuel system, emission system, heater and air conditioning, engine control system, chassis and body, restraint system, interior, differential and drive, and axle. This manual offers a complete solution for any repair or maintenance task, with detailed diagrams, illustrations, and step-by-step instructions. The information within is presented in a clear and concise manner, allowing for easy understanding and application. It is an essential tool for anyone looking to perform repairs or maintenance on their Mazda 121.

The Mazda 121, a compact hatchback that graced the roads from 1987 to 1996, offered a blend of practicality and affordability in the burgeoning Japanese car market. The 1990 and 1991 models, the focus of this workshop service repair manual, represented a significant update to the first generation 121, introducing a new, more angular design and a range of engine options. The 1990 121 saw the introduction of a 1.3-liter engine, paired with either a 5-speed manual or 4-speed automatic transmission. While the 1991 model retained these options, it also introduced a new 1.5-liter engine, further enhancing performance. These models were known for their fuel efficiency, nimble handling, and compact design, making them ideal for city driving and everyday commutes. The Mazda 121 was not just a practical city car; it also offered a surprisingly engaging driving experience. Its compact dimensions allowed for agility and ease of maneuverability, while the relatively powerful engines for its size offered satisfactory acceleration and responsiveness. The unassuming exterior belied a well-engineered interior that prioritized functionality and comfort, with straightforward controls and adequate space for passengers. The 1990 and 1991 models were popular choices for first-time car buyers and families seeking an affordable and reliable vehicle. However, their longevity and popularity also meant a growing need for quality repair manuals like the one mentioned, which would guide both experienced mechanics and DIY enthusiasts in addressing any maintenance or repair needs that arose.