2007 Yamaha RS90K, RS90RK, RSG90K, RS90MK, RST90K, RST90TFK Snowmobile Service Manual
Shop manual for Yamaha RS90K, RS90RK, RSG90K, RS90MK, RST90K, RST90TFK snowmobiles: engine, power train, chassis, cooling system, and electrical components.
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Sample pages from the 2007 Yamaha RS90K, RS90RK, RSG90K, RS90MK, RST90K, RST90TFK Snowmobile Service Manual manual
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Yamaha Models Covered & Key Technical Specifications
Models: RS90K, RS90RK, RSG90K, RS90MK, RST90K, RST90TFK
Sub-models / Variants: RS90R, RSG90, RST90, RST90TF, USA/Canada model, Europe model
Build Years: 2007
Technical Data:
- Engine idle speed: 1,300–1,500 r/min
- Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)
- Spark plug torque: 13 Nm (9.4 ft-lb)
- Engine oil capacity (periodic change): 2.8 L (3.0 US qt)
- Engine oil capacity (with filter change): 3.0 L (3.2 US qt)
- Coolant (RS90/RS90R/RSG90 total): 4.8 L (5.07 US qt)
- Standard V-belt height: -0.5 to 1.5 mm
- New belt width: 34.5 mm (1.36 in)
- Drive chain adjusting locknut torque: 25 Nm (18 ft-lb)
- Rear axle nut torque (RS90/RS90R/RSG90/RS90M/RST90): 75 Nm (54 ft-lb)
Yamaha Manual Features & Content Preview
Yamaha RS90K, RS90RK, RSG90K, RS90MK, RST90K, RST90TFK Service Manual Preview
- Covers 2007 Yamaha RS90K, RS90RK, RSG90K, RS90MK, RST90K, and RST90TFK snowmobile variants
- Official Yamaha publication P/N LIT-12618-02-38, first edition May 2004
- Contains 688 pages of technical diagrams and maintenance specifications
- Stored against your account so you can retrieve it after a hard-drive loss
- Full-text search finds any part number in seconds
- This 2004 first edition provides the factory-authorized specifications used for all RS90 platform variants
Manual Structure
The 2007 Yamaha RS90 snowmobile manual is structured into nine primary chapters. The documentation begins with general information, machine identification, and essential tool lists. Periodic inspection data covers engine maintenance, cooling system upkeep, and drivetrain adjustments. Specific chassis sections detail steering and suspension configuration for the RS90, RS90M, and RST90 platform variants. Power train segments focus on the primary and secondary sheave systems, drive V-belt, and chain housing assembly. Engine chapters provide data on the oil system, camshaft timing, and cylinder head component installation. Electrical chapters include circuit diagrams for starting, charging, lighting, and grip warmer systems.
Specification and Technical Preview
Engine cooling system maintenance includes filling instructions and bleeding procedures for different models, such as the RS90M, which specifies a 6.3 L total coolant capacity. Valve clearance for the intake is listed at 0.15–0.22 mm in the cylinder head specification table. Compression pressure at sea level for the engine is documented as 1,450 kPa at 400 r/min in the specification data section. The manual provides detailed charts for carburetor tuning, including main jet selections for elevation changes. For detailed information on how factory workshop documentation is structured, refer to the official service guidelines. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.
This 688-page Yamaha OEM service manual covers the 2007 RS90K, RS90RK, RSG90K, RS90MK, RST90K, and RST90TFK snowmobile models, documenting engine, chassis, electrical, and drivetrain specifications for the complete platform.
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