2007-2008 Yamaha Grizzly 400, YFM4FG ATV Service Manual

Yamaha Grizzly 400 2007–2008 — Service Scope and Data

• Covers 2007–2008 Yamaha Grizzly 400 (YFM4FG) ATV variants with liquid-cooled 401cc SOHC engine and V-belt automatic transmission
• Official Yamaha publication, LIT-11616-series internal form documentation, first edition context for 2007–2008 model years
• Contains 457 pages of maintenance, assembly, and technical specifications, including cooling system flow diagrams, cable routing maps, and torque charts
• Accessible from your device as soon as the order is placed
• Stored against your account so you can retrieve it after a hard-drive loss
• Full-text search finds any part number in seconds
• Laid out for standard letter and A4 printing
• This 2007–2008 service publication is the primary factory reference for the 5TE-series Yamaha Grizzly 400 build, documenting all chassis and electrical tuning parameters

Technical and Maintenance Documentation

The 2007 Yamaha Grizzly 400 and 2008 Yamaha Grizzly 400 service manual provides structured insight into machine maintenance, engine assembly, and chassis configuration. Detailed chapters cover the liquid-cooled 401cc engine, including cylinder head inspection, valve clearance, and timing chain tensioner settings. The transmission section details V-belt replacement and secondary sheave maintenance. Electrical coverage spans the ignition system, charging system components, and full circuit diagrams for lighting and signals. The drive train section includes differential gear lash measurement and final drive servicing.

Specification Previews

Engine compression is documented at a standard 1,400 kPa at 750 r/min. Valve clearance for the intake is listed at 0.06–0.10 mm in the cylinder head specification table. Cylinder head bolt torque values are documented in a multi-stage sequence, with primary bolt tightening specified at 40 Nm. The manual contains specific torque data for hundreds of fasteners, such as the 140 Nm nut for the clutch carrier assembly. what an OEM service publication covers includes standardized lubrication points using Yamaha Bond No. 1215 and high-quality grease for oil seals and O-rings. Reference values for ignition timing are specified at 10°/1,500 r/min. 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. An official 457-page Yamaha OEM workshop manual covering the 2007–2008 Grizzly 400, documenting engine, chassis, electrical, and drive-train specifications for the 5TE-series build.