1999 Yamaha YFM400FWAM / YFM400FWAMC ATV Service Manual
This Service Manual covers the Yamaha YFM400FWAM and YFM400FWAMC models from 1999. It provides essential repair, maintenance, and troubleshooting information with detailed diagrams and part numbers. Get yours today!
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Sample pages from the 1999 Yamaha YFM400FWAM / YFM400FWAMC ATV Service Manual manual
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Yamaha Models Covered & Key Technical Specifications
Models: Yamaha YFM400FWAM, Yamaha YFM400FWAMC
Sub-models / Variants: Kodiak 400 4WD, 4-stroke liquid-cooled single-cylinder, V-belt automatic transmission
Build Years: 1999
Technical Data:
- Engine: 401 cc liquid-cooled 4-stroke, SOHC, forward-inclined single cylinder
- Bore x Stroke: 84.5 mm x 71.5 mm
- Compression Ratio: 10.5:1
- Transmission Type: V-belt automatic with sub-transmission (low/high) and reverse
- Final Drive: Shaft drive with differential gear
- Braking System: Dual disc front, single disc rear
- Suspension: Front double wishbone, rear swingarm (monocross)
- Tire Size: Front AT25x8-12, Rear AT25x10-12
- Electrical System: 12 V, C.D.I. ignition, A.C. magneto generator, 12 V 18 AH battery
Yamaha Manual Features & Content Preview
Yamaha YFM400FWAM / YFM400FWAMC 1999 ATV Service Manual
- Covers 1999 Yamaha YFM400FWAM and YFM400FWAMC Kodiak 400 4WD models featuring the 401cc liquid-cooled single-cylinder engine and V-belt automatic transmission
- Official Yamaha publication P/N LIT-11616-13-21, first edition April 1999
- Contains 374 pages of technical content including detailed exploded-view diagrams, extensive tightening torque tables, and wiring schematics
- Downloads to your account within seconds of checkout
- Permanent availability in your purchase account — no re-buy required
- Laid out for standard letter and A4 printing
- Full-text search finds any part number in seconds
- This 1999 first edition is the primary factory reference for the initial Kodiak 400 4WD build, detailing specifications specific to the 5GH1, 5GH2, 5GH6, and 5GH7 model codes
What the Yamaha YFM400FWAM Documents
This factory-authorized manual provides extensive documentation for the 1999 Yamaha YFM400FWAM and YFM400FWAMC maintenance and service. The chapters span critical machine areas including general information, full maintenance schedules, and detailed engine disassembly. The text covers cooling system management, carburetion tuning, chassis geometry, and electrical system diagnostics for the 401cc powerplant. Technicians and owners will find the how factory workshop documentation is structured approach useful for navigating the drivetrain, which includes the V-belt transmission, middle gear, and final axle assembly. Each section integrates clear component identification to assist with service tasks.
Specification Highlights
The 1999 Yamaha YFM400FWAM manual lists precise technical values required for vehicle health. Standard cylinder head bolt torque is documented at 40 Nm (29 ft-lb) in the maintenance table. Valve clearance for the intake is listed at 0.06–0.10 mm in the cylinder head specification table. Engine idle speed for the 1999 Yamaha YFM400FWAM is specified at 1,450–1,550 r/min. The cooling system capacity is documented at 1.1 liters. Electrical system reference values include a 30 A main fuse rating. All torque specifications are provided in Nm, m-kg, and ft-lb for standard fasteners. Official 374-page Yamaha OEM workshop manual covering the 1999 Yamaha YFM400FWAM and YFM400FWAMC, documenting engine, chassis, electrical, and drivetrain specifications for the Kodiak 400 4WD build.
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