1987-1991 Yamaha Exciter EX570 & EX570E Snowmobile Service Manual

1987–1991 Yamaha Exciter EX570 Technical Scope

• Covers 1987–1991 Yamaha Exciter EX570 and EX570E snowmobiles, including EX570L, High Altitude, and Exciter II variants
• Original OEM publication, Form 82M-000101, documenting factory maintenance, engine overhaul, and chassis adjustment specifications
• Contains 47 detailed exploded-view diagrams, 8 technical tuning charts for altitude adjustments, and 12 engine/drive system torque tables
• Accessible from your device as soon as the order is placed
• Full-text search finds any part number in seconds
• This 1987–1991 Yamaha Exciter EX570 factory archive is the primary reference used for high-altitude carburetor and clutch tuning settings

Factory Maintenance and Overhaul Documentation

The 1987–1991 Yamaha Exciter EX570 service manual provides extensive details for the routine care and mechanical upkeep of the Exciter series. Chapters encompass a full breakdown of general identification, scheduled maintenance tables, engine teardown, and cooling system requirements. The publication further documents power train adjustments, chassis maintenance, and electrical component diagnostics. All procedures emphasize factory-recommended service intervals to ensure reliable machine performance across varying snow conditions.

Specification Highlights and Technical Reference

This technical guide includes comprehensive reference values for the Yamaha EX570, covering fluid capacities, timing, and mechanical tolerances. Standard idle speed for the 1987–1991 Yamaha Exciter is documented at 1,400–1,600 r/min. Intake valve clearance for the intake is listed at 0.11–0.20 mm in the cylinder head specification table. Cylinder head bolt torque values are documented in a multi-stage sequence, with final-stage values specified at 33 Nm in the engine assembly data. The manual covers factory workshop documentation regarding high-altitude tuning parameters for jetting and clutch engagement adjustments.

Reference only — always consult a certified technician before performing service on this equipment. An official 578-page Yamaha OEM workshop manual covering the 1987–1991 Yamaha Exciter EX570, documenting engine, chassis, electrical, and carburetor specifications for the 82M-series build.