This workshop service repair manual covers the Yamaha Exciter EX570E and its variants, including the EX570HP, EX570EHP, EX570M, and EX570EM, produced between 1987 and 1990. This first-generation model features a 561 cc two-stroke, fan-cooled engine with dual Mikuni VM34SS carburetors and a CDI ignition system. Its powertrain utilizes a chain drive with Yamaha Automatic (YPC) primary and Yamaha Roller Cam (YRC) secondary clutches. The chassis is equipped with telescopic front struts offering adjustable travel and an All Wheel Steering (AWS) trailing arm rear suspension, complemented by front and rear disc brakes and halogen headlights. This comprehensive English-language manual provides detailed information essential for maintaining and repairing your Yamaha Exciter. It includes procedures for periodic inspections and adjustments, engine oil specifications for the two-stroke fan-cooled engine, and technical data. Whether you are an owner seeking to understand your vehicle better or a technician performing maintenance, this manual offers the necessary guidance to ensure optimal performance and longevity of your snowmobile.