Yamaha Grizzly 350 IRS YFM35FGI 2007–2010 ATV Service Manual (P/N 3AW-27400-00)

• Covers 2007–2010 Yamaha YFM35FGI Grizzly 350 IRS ATV models equipped with the 348 cm³ air-cooled SOHC 4-stroke engine and shaft-drive drivetrain
• Official Yamaha publication detailing the 4S21 and 4S25 serial-number variants
• Contains 47 detailed exploded-view assembly diagrams and 35 specialized technical reference tables
• Spans 373 pages of factory-authorized mechanical specifications and system-wide service procedures

Component and System Documentation

Inside, you will find factory-approved reference materials for the engine block, including cylinder head service parameters, valve clearance adjustment intervals, and piston inspection criteria. The documentation breaks down the V-belt automatic transmission. It also covers the wet, multiple-disc rear braking system integrated into the final gear case. For electrical troubleshooting, the manual provides full wiring diagrams alongside expected voltage values for the CDI, ignition, and charging circuits. Working on ATVs involves inherent physical risks. Always verify factory safety precautions and stabilize the vehicle before beginning any diagnostic work or tear-down. You also get clear chassis maintenance guidelines for the double-wishbone suspension and steering assembly to support routine service intervals.

Specification and Data Highlights

Baseline technical data sets the engine compression pressure standard at 1,050 kPa (149 psi). The cylinder head specification tables dictate an intake valve clearance of 0.06 to 0.10 mm. Routine fluid changes require 2.2 liters of engine oil. Critical hardware torque specifications are listed throughout, such as the 60 Nm (43 ft-lbs) requirement for the balancer driven gear nut.