1983-1986 Yamaha YTM/YFM200 & YTM225 Service Manual
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha YTM200, YFM200, YTM225
Sub-models / Variants: YTM200K, YTM200L, YTM200N, YTM200EK, YTM200EL, YTM200ERN, YTM225DXK, YTM225DXL, YTM225DXN, YTM225DRN, YTM225DRS, YFM200N, YFM200DXS
Model Years: 1983–1986
Serial Numbers: 21V-000101–100100, 21V-100101–160100, 21V-160101–on, 24W-000101–100100, 24W-100101–on, 29U-000101–060100, 29U-060101–on, 29U-100101–on, 52G-000101–on, 1EV-000101–on, 1NV-000101–on, 52H-000101–on, 1NU-000101–on
Technical Data:
-
Engine displacement: 196 cc
-
Compression pressure: 9 kg/cm² (128 psi) standard, 8 kg/cm² (114 psi) minimum
-
Idle speed: 1,400 ± 50 rpm
-
Spark plug: NGK D7EA, ND X22ES-U
-
Intake valve clearance: 0.05–0.09 mm (0.002–0.004 in.)
-
Exhaust valve clearance: 0.11–0.15 mm (0.0043–0.006 in.)
-
Electrical system: 12-volt battery
-
Fuel capacity (oil change): 1,500 cc (1.6 qt)
-
Fuel capacity (overhaul): 1,800 cc (1.9 qt)
Yamaha Manual Features & Content Preview
Yamaha YTM/YFM200 and YTM225 Technical Documentation
- Covers 1983–1986 Yamaha YTM200, YFM200, and YTM225 ATVs, including chain-drive and shaft-drive variants.
- OEM edition featuring 91 indexed figures, 8 technical specification tables, and 13 chapters of complete engine and chassis data.
- Instant download directly to your account within seconds of checkout.
- Stored securely in your dashboard so you can retrieve it after a hard drive loss or device upgrade.
- Suitable for the shop floor—print individual sections as needed.
- Fully searchable PDF format ensures fast cross-reference lookups.
- Serves as the primary reference for K, L, N, and DX-series frame numbering sequences.
Document Structure and Technical Scope
This 288-page Clymer service manual provides a comprehensive overview of engine principles, routine maintenance, and system diagnostics for these classic off-road machines. Need the data right now? The complete file is available as an instant download so you can get straight to work. The documentation starts with essential shop practices, hand tool selection, and standard bolt-identification techniques. It covers critical maintenance schedules like periodic lubrication, valve clearance adjustments, and carburetor fuel level settings to keep the 4-stroke overhead-cam engine within factory tolerances. Before performing any service or lifting these vehicles, always ensure your workspace is secure, use proper support stands, and consult a certified technician if you are unsure about complex repairs.
Beyond basic tune-ups, the manual breaks down the clutch, transmission assemblies, and electrical troubleshooting. This includes detailed testing parameters for CDI ignition units and electric starting components. You will also find maintenance requirements for the YTM and YFM front fork configurations and rear drive axle systems. Exhaustive wiring diagrams and a highly detailed index round out the publication, offering a clear technical baseline for owners and mechanics alike.
Engine and Chassis Data Preview
Detailed specifications are provided throughout the text to support accurate shop work. Cylinder head bolts and M8 flange bolts require a specific tightening torque of 22 Nm (16 ft-lb). Standard engine oil capacity is 1,500 cc during a regular change, scaling up to 1,800 cc after a complete overhaul. For tuning procedures, intake valve clearance is set at 0.05–0.09 mm. The standard compression pressure for the single-cylinder engine should read 9 kg/cm² (128 psi) at normal operating temperatures. Finally, brake specs mandate a front drum inside diameter of 110 mm, with a strict 111 mm wear limit.
Customer Reviews
Read what our customers say about this Yamaha ATV manual and share your own experience.