Yamaha YFM35FGI ATV Service Manual | SN 4S21+ Factory Docs

Complete Yamaha YFM35FGI ATV service manual for SN 4S21 and 4S25 models. Essential technical documentation for all maintenance and repair procedures. PN 3AW-27400-00.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: Yamaha YFM35FGI Grizzly 350 IRS
Build Years: 2007–2010
Serial Numbers: 4S21, 4S25
Technical Data:

  • Engine displacement: 348 cm³
  • Engine type: Air-cooled 4-stroke, SOHC
  • Cylinder arrangement: Forward-inclined single cylinder
  • Transmission: V-belt automatic with shaft drive
  • Front brake: Dual hydraulic disc
  • Rear brake: Wet, multiple-disc brake
  • Engine oil capacity (periodic change): 2.2 L
  • Tire pressure (cold, front/rear): 22–28 kPa (3.2–4.0 psi)
  • Valve clearance (cold) intake: 0.06–0.10 mm
Technical Specifications
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Document Number / Seller:
28230 / Carol Owens
File Size:
26.54 MB
File Type:
PDF
Language:
English
Pages:
373
Printable:
Yes
Category:
ATV
Last updated / verified
Mar 5, 2026

Yamaha Manual Features & Content Preview

Technical Scope and Coverage for the Yamaha YFM35FGI Grizzly 350 IRS

  • Covers 2007–2010 Yamaha YFM35FGI Grizzly 350 IRS ATV models with 348 cm³ air-cooled SOHC 4-stroke engine and shaft-drive drivetrain
  • Official Yamaha publication, no revision date specified, factory-authorized content
  • Contains 47 detailed exploded-view assembly diagrams and 35 specialized technical reference tables
  • Delivered as a direct download the moment payment clears
  • Indexed PDF search covers every chapter and appendix
  • Stored against your account so you can retrieve it after a hard-drive loss
  • This 373-page factory-authorized document provides the exact mechanical specifications and system-wide service procedures established for the 4S21/4S25 serial-number variants

Component and System Documentation

The factory manual details procedures for the engine, including cylinder head service, valve clearance adjustment, and piston/cylinder inspection. It includes extensive coverage of the V-belt automatic transmission and the wet, multiple-disc rear braking system integrated into the final gear case. Electrical system sections include full wiring diagrams and diagnostic values for the CDI, ignition, and charging components. Chassis maintenance for the double-wishbone suspension and steering assembly is clearly documented to support regular service intervals.

Specification and Data Highlights

Technical data is provided for engine compression pressure, standard 1,050 kPa (149 psi). Valve clearance for intake is 0.06–0.10 mm per the cylinder head specification table. Engine oil capacity is documented at 2.2 liters for periodic changes. The manual also includes specific tightening torques for critical hardware, such as the 60 Nm (43 ft-lbs) specification for the balancer driven gear nut. This 373-page OEM factory service manual provides the definitive diagnostic and maintenance parameters for the 2007–2010 Yamaha YFM35FGI Grizzly 350 IRS ATV.

Manual FAQ, Purchase & Download Details

Does this Yamaha YFM35FGI service manual provide a digital format that can be downloaded for use on multiple devices? keyboard_arrow_down

Product is delivered as a comprehensive PDF document that supports viewing across various digital devices and is ready for immediate download after purchase.

What information does the document provide regarding the electrical and ignition system configurations? keyboard_arrow_down

Manual includes dedicated chapters for the electrical system, containing detailed circuit diagrams for the ignition, starting, charging, and lighting systems. These sections also reference troubleshooting charts to assist in identifying component status.

Which sections contain wiring diagrams and connector pinout references for the electrical components? keyboard_arrow_down

Electrical system chapter lists comprehensive circuit diagrams, along with information for checking switch continuity and the condition of bulb sockets.

Can the manual be used to preview the structural layout of the engine and drivetrain components? keyboard_arrow_down

Document contains numerous exploded diagrams at the start of disassembly sections to illustrate the assembly order and component placement. These diagrams cover major systems, including the engine, clutch, and drive train assemblies.

Is there a central location in the manual where I can view standard fluid capacities and lubrication requirements? keyboard_arrow_down

Specifications and general information chapters list engine oil volumes, lubricant types, and lubrication points for various ATV systems. Additionally, the manual features specification tables that outline these operational fluids and reference values.

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