Factory Workshop SpecificationsPlatform Gen: 2018–2024

2024 Yamaha YZ450F Motocross Specifications & Consumables

Official workshop technical reference: fluid capacities, spark plug codes, drive chain specs, and tire inflation pressures.

Gen 2018–2024

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2018 through 2024.

Select Model Year:(Active: 2024)

2018 2019 2020 2021 2022 2023 2024

Engine

450cc

Drive

520

Cooling

Liquid-Cooled

Engineering Subsystem Workbenches & Calculators

Dedicated deep-dive diagnostic tools, torque matrices, wiring pinouts, and calculators tailored for 2024 Yamaha YZ450F Motocross.

10 Dedicated Engineering Spoke Pages

Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

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Subsystem Guide/fluids

Fluids & Capacities

Oil: 0.90 L (0.95 US qt) • Coolant: 1.00 L (1.06 US qt) • Brake: DOT 4

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Subsystem Guide/fuses-relays

Fuses & Relays

Main: 30A Blade • Location: N/A

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Subsystem Guide/compression

Compression & Leakdown

Ratio: 13.0:1 • Std: 170-215 PSI • Limit: 135 PSI

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Subsystem Guide/valves

Valve Clearances

Intake: N/A mm • Exhaust: N/A mm

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Subsystem Guide/fuel-delivery

Fuel Delivery & TB Sync

Idle: N/A • Rail Pressure: N/A • Vacuum: N/A

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Subsystem Guide/electrical

Charging & Battery

Battery: BTZ7S • CCA: 130 • Regulated: 14.2 - 14.8 V DC (at 5,000 RPM with High Beam)

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Subsystem Guide/tires

Tires & Gearing

Front: 80/100-21 • Rear: 120/80-19

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Subsystem Guide/suspension

Suspension & Sag

Front Travel: 310 mm • Rear Travel: 317 mm

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Subsystem Guide/maintenance

Maintenance Schedule

Oil: Every 5–10 engine run hours (competition) mi • Valves: N/A • Plugs: Every 20 engine run hours mi

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Fluids & Service Capacities

Shop Fluids →

Engine Oil (Drain & Filter Change)0.90 L (0.95 US qt)

Engine Oil (Drain Only)0.85 L (0.90 US qt)

Recommended Oil Viscosity10W-40 Yamalube 4R, JASO MA

Coolant System Capacity1.00 L (1.06 US qt)

Brake Fluid StandardDOT 4

Drivetrain, Chain & Gearing

Gearing Calculator →Shop Chains & Sprockets →

Drive Chain Pitch520

Chain Link Count114 Links

Front Sprocket Teeth13T

Rear Sprocket Teeth48T

Final Drive Configuration520 Pitch Chain

Ignition & Electrical Specifications

Shop Plugs & Batteries →

OEM Spark Plug Part NumberNGK LMAR9E-J

Electrode Spark Plug Gap0.8 - 0.9 mm (0.031 - 0.035 in)

OEM Battery Reference CodeBTZ7S

Battery Output & Rating12V 2.0Ah (Lithium) 130 CCA

Spark Plug Inspection Interval20 engine run hours miles

Wheels, Tires & Inflation Pressures

Shop Tires →

Front Tire Dimensions80/100-21

Cold Front Inflation Pressure14 PSI (Cold)

Rear Tire Dimensions120/80-19

Cold Rear Inflation Pressure14 PSI (Cold)

OEM Wheel Rim Widths (F / R)3.50" / 5.50"

Official NHTSA Safety Recalls & Technical Bulletins

0 Open Campaigns (Clean)

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

No Active Federal Safety Recalls Reported

The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2024 Yamaha YZ450F Motocross platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

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