This comprehensive repair manual provides detailed instructions for maintaining, servicing, and repairing your 1981-1985 Yamaha SS440 (SS-440) snowmobile. The manual covers all aspects of repair, from basic maintenance to complex engine work. Each chapter starts with an assembly or system illustration, diagrams, exploded parts view, pictures, service information, and troubleshooting tips. Subsequent pages offer step-by-step repair procedures for every component. The manual features detailed information on: * General Information * Specifications * Maintenance and Adjustments * Fuel System * Body and Steering * Engine * Drive Train and Track * Suspension and Brake Systems * Electrical System * Wiring Diagrams * Troubleshooting * Index This manual gives you the confidence to tackle any repair job yourself, saving you time and money.