Yamaha Grizzly 350 4WD ATV (2012–2013) – Service & Owner’s Manual Set (P/N LIT-11616-25-40)

The Service Manual covers workshop diagnosis and repair. The Owner’s Manual explains the ATV’s controls, riding techniques, and routine care.

Model fit. Match the frame label to the Service Manual models above before selecting repair data or parts. The VIN range in the owner volume belongs to the EC declaration for YFM350FWA (YFM35FG).

PDF Search, Bookmarks, and Wiring Detail

Text search and diagram detail: Both PDFs have searchable main text and embedded chapter bookmarks. Some graphic labels fall outside text search. In the Service Manual, zoom in to read small component numbers, connector markings, and wire codes.

The ZIP contains two printable PDFs totaling 485 pages. The Service Manual count includes the front and back covers, 11 blank or header-only pages, a wiring legend, and an appended color wiring diagram. The Owner’s Manual count includes the front and back covers, the EC declaration, and two index pages.

Engine Repair, 4WD Diagnostics, and ATV Operation

The bullets show a selection of topics. The manuals also cover shock spring preload adjustment and preparation for storage.

• Engine repair: Compression testing, engine removal and installation, cylinder head and valve service, piston and cylinder inspection, and crankcase and crankshaft repair.

• CVT and transmission: Primary and secondary sheave service, centrifugal clutch work, transmission disassembly and inspection, and middle gear alignment.

• Brakes and chassis: Wheel hubs, front brake calipers and master cylinder, rear drum brake, steering, ball joints, suspension arms, shocks, and swingarm service.

• 4WD and shaft drive: Front CV shaft service, On-Command 2WD/4WD checks, differential and rear final-drive work, rear axle and drive shaft inspection, backlash measurement, and shim selection.

• Fuel and scheduled service: Carburetor teardown and fuel-level adjustment, valve clearance, V-belt replacement, hydraulic brake bleeding, toe-in, drive-select linkage adjustment, and lubrication schedules.

• Electrical diagnosis: Circuit diagrams, component tests, troubleshooting charts, and a complete color wiring diagram for the Service Manual models.

• Owner operation: Pre-operation checks, starting and reversing, terrain-riding guidance, and regional safety and loading labels.

Yamaha wrote the Service Manual primarily for dealers and qualified mechanics with a working knowledge of repair techniques. The Owner’s Manual is for riders and covers basic maintenance, with tools and experience required for servicing.

Engine, CVT, and Carburetor Repair

Exploded views and job charts show the order of parts and pair the procedures with inspection criteria, assembly notes, torque and lubrication references, and replacement symbols.

Internal engine coverage includes valve guides and seats, piston rings, the starter clutch, balancer gears, and oil pump. The CVT section explains sheave inspection and assembly. Carburetor service includes checking passages and components, reassembly, installation, and fuel-level setup.

Steering, Suspension, and Shaft Drive

Steering procedures cover the handlebar, steering stem, tie-rods, and steering knuckles. The suspension sections include front arm and shock absorber inspection. The shaft-drive troubleshooting charts cover abnormal noises and suspected oil leaks.

Front differential service includes CV joint disassembly and testing the shift actuator. Yamaha specifies keeping the factory-assembled differential gear unit and actuator motor intact during service. Rear final-drive work includes bearing service, pinion and ring gear shim selection, and ring gear stopper clearance.

The manual identifies left-hand threads on middle-gear and final-drive retainers. It explains how shim selection and backlash checks help prevent gear tooth damage after gearcase work. Follow Yamaha’s bleeding, timing, backlash, and final inspection requirements for the assembly being serviced.

Electrical Fault Finding and Workshop References

The Ignition System Circuit Diagram, Starting Circuit System Operation, and 2WD/4WD Selecting System Circuit Diagram accompany tests for ignition, starting, charging, lighting, signaling, oil cooler fan control, and 4WD selection. For a no-crank fault, the starting-system chart helps distinguish a switch or relay fault from a starter motor problem.

The Engine Oil Lubrication Chart, Cable Routing drawings, and YFM35FGB/YFM35FGHB 2012 Wiring Diagram complement the engine and chassis torque tables, fluid capacities, lubricant types, wear limits, and electrical test data.

The special-tool list pairs Yamaha 90890-series references with North American YM/YU numbers, including the valve spring compressor 90890-04019/YM-04019, sheave spring compressor 90890-04134/YM-04134, crankcase separator 90890-01135/YU-01135-B, and gear lash tool 90890-01475/YM-01475.

Riding, Regional Labels, and Owner Maintenance

The Owner’s Manual groups safety and loading labels for Europe and Oceania and identifies model differences in indicator labels, tire fitments, curb weights, and fuel recommendations. These details help owners find the information that applies to an imported ATV.

Operating guidance covers cold and warm starts, On-Command 4WD, parking, break-in, cargo carriers, storage limits, and trailer loading. Riding guidance addresses slopes, shallow water, rough terrain, skidding, and what to do if the ATV stalls or starts to tip.

Maintenance charts cover fluid, brake, tire, fastener, light, and switch checks. Owner service includes engine, final-drive, and differential oil changes, air filter and spark arrester cleaning, brake adjustment, battery and fuse service, lighting, and basic troubleshooting.

Sample Valve and Gear Clearance Specifications

For both Service Manual models, cold valve clearance at top dead center on the compression stroke is 0.06–0.10 mm on the intake side and 0.16–0.20 mm on the exhaust side.

The front differential backlash specification is 0.05–0.25 mm, checked at four pinion positions. For rear final-drive shim selection, the manual specifies 0.30–0.60 mm between the ring gear and its stopper.