125 Yamaha Grizzly Manual

The Yamaha Grizzly 125 is a compact, versatile all-terrain vehicle (ATV) designed for recreational and utility use. This manual covers the 125cc model, featuring a reliable four-stroke engine, automatic transmission with reverse, electric start, independent front suspension, and a durable chassis. Below are key sections for safety, features, operation, maintenance, troubleshooting, and specifications.

1. Features at a Glance 2. Pre-Ride Inspection 3. Controls and Operation 4. Specifications 5. Maintenance Schedule 6. Basic Maintenance Procedures 7. Storage Guidelines 8. Safety Information 9. Warranty & Support 10. Troubleshooting

Features at a Glance

Key components: 125cc 4-stroke SOHC engine, Automatic V-belt transmission with reverse, Electric start, Independent double-wishbone front suspension, Solid rear axle, Front and rear hydraulic drum brakes, Steel frame.

FeatureDescription
Engine125cc air-cooled 4-stroke, SOHC
TransmissionAutomatic V-belt, forward and reverse
Starting SystemElectric start with auxiliary recoil
Suspension FrontIndependent double wishbone
Suspension RearSwingarm with single shock
BrakesHydraulic drum front and rear
Fuel CapacityApprox. 2.5 gallons (9.5 liters)
TiresATV-specific knobby tires
Load CapacityIncludes rider, cargo, and accessories
InstrumentationSpeedometer, odometer, fuel gauge, indicator lights

Pre-Ride Inspection

Always perform a pre-ride inspection to ensure safe operation.

  1. Check fuel level and ensure fuel cap is secure.
  2. Inspect tires for proper pressure and damage.
  3. Check all fluid levels (engine oil, brake fluid).
  4. Test brakes and throttle for smooth operation.
  5. Ensure lights, indicators, and horn are functional.
  6. Check for loose bolts, nuts, or damaged parts.

WARNING! Never operate the ATV if any component is damaged or malfunctioning. Always wear appropriate safety gear.

Controls and Operation

Familiarize yourself with all controls before riding.

  1. Starting: Insert key, set engine stop switch to RUN, pull brake lever, press start button.
  2. Driving: Select direction (F=Forward, N=Neutral, R=Reverse) using lever. Apply throttle smoothly.
  3. Braking: Use front and rear brake levers together for controlled stopping.
  4. Parking: Engage parking brake on inclines. Turn key to OFF.

CAUTION! Practice in a safe, open area. Avoid sudden throttle or brake inputs. Never carry passengers unless specifically designed for it.

Specifications

Maintenance Schedule

Regular maintenance ensures longevity and safety. Refer to the manual for detailed intervals.

ItemInitial (mi/km)Every (mi/km)
Engine OilCheck/Change100 / 600
Oil FilterChangeAs recommended
Air FilterClean/Inspect300 / 1800
Spark PlugInspect/Replace600 / 3600
Brake Pads/ShoesInspectEvery ride
Drive Shaft/BearingsLubricate/Inspect600 / 3600
Tire PressureCheckBefore each ride
Nuts & BoltsTighten100 / 600

Basic Maintenance Procedures

Engine Oil Change: Warm engine, drain plug, replace oil and filter. Air Filter: Remove, clean with compressed air or replace. Spark Plug: Check gap, clean, or replace. Brake Adjustment: Check lever free play, adjust if necessary.

Tip: Use only Yamaha recommended fluids and parts. Torque fasteners to specified values.

Storage Guidelines

For long-term storage (over 30 days):

  1. Change engine oil and filter.
  2. Add fuel stabilizer and run engine for 5 minutes.
  3. Remove spark plug, add a teaspoon of oil, crank engine, reinstall plug.
  4. Clean entire ATV thoroughly.
  5. Inflate tires to recommended pressure; elevate if possible.
  6. Store in a cool, dry place, covered.

WARNING! Gasoline left in the system can degrade and cause starting issues. Proper preparation is essential.

Safety Information

Always wear a helmet, eye protection, gloves, long sleeves, long pants, and over-the-ankle boots. Never operate on public roads unless legally permitted. Avoid paved surfaces; ATV tires are not designed for pavement. Ride only on designated trails. Never carry passengers unless the ATV is specifically designed for more than one person. Complete a training course. Never ride under the influence of alcohol or drugs.

Warranty & Support

Yamaha Motor Corporation provides a limited warranty. See your dealer for details. For technical support, parts, or service, contact an authorized Yamaha ATV dealer or visit www.yamahamotorsports.com.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startFuel, spark, batteryCheck fuel level/valve; inspect spark plug; check battery charge.
Loss of powerClogged air filter, fuel issueClean/replace air filter; check fuel line and carburetor.
Poor brakingWorn pads, low fluid, air in lineInspect pads/shoes; check fluid level; bleed brakes if necessary.
Transmission slippingWorn drive belt, adjustmentInspect drive belt; check adjustment per manual.
Electrical issuesBlown fuse, loose connectionCheck main fuse; inspect wiring harness connections.

Note: For complex issues, consult an authorized Yamaha service technician.

Service: Contact your local authorized Yamaha ATV dealer.

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