Factory Workshop SpecificationsPlatform Gen: 2015–2026

2021 Yamaha YZF-R3 Specifications & Consumables

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

Technical PassportOEM VERIFIED

Engine

321cc

Cooling

Liquid-Cooled

Final Drive

520 Chain

Engine Oil

2.10 L (2.22 US qt)

Spark Plug

NGK CR8E

Front Tire

110/70-17

Gen 2015–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2015 through 2026.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available

1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2021 Yamaha YZF-R3.

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Select Model Year:(Active: 2021)
12 Production Years (2015–2026)

2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Engineering Subsystem Workbenches & Calculators

Dedicated deep-dive diagnostic tools, torque matrices, wiring pinouts, and calculators tailored for 2021 Yamaha YZF-R3.

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: 2.10 L (2.22 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: 11.5:1 • Std: 165-210 PSI • Limit: 142 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: YTX7L-BS • CCA: 100 • Regulated: 14.2 - 14.8 V DC (at 5,000 RPM with High Beam)

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Subsystem Guide/tires

Tires & Gearing

Front: 110/70-17 • Rear: 140/70-17

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Subsystem Guide/suspension

Suspension & Sag

Front Travel: 130 mm • Rear Travel: 125 mm

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Subsystem Guide/maintenance

Maintenance Schedule

Oil: Every 3,000 miles (5,000 km) mi • Valves: N/A • Plugs: Every 8,000 miles (13,000 km) mi

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Fluids & Service Capacities

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Engine Oil (Drain & Filter Change)2.10 L (2.22 US qt)

Engine Oil (Drain Only)1.80 L (1.90 US qt)

Recommended Oil Viscosity10W-40 API SG or higher, 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 Count112 Links

Front Sprocket Teeth14T

Rear Sprocket Teeth43T

Final Drive Configuration520 Pitch Chain

Ignition & Electrical Specifications

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OEM Spark Plug Part NumberNGK CR8E

Electrode Spark Plug Gap0.7 - 0.8 mm (0.028 - 0.031 in)

OEM Battery Reference CodeYTX7L-BS

Battery Output & Rating12V 6Ah 100 CCA

Spark Plug Inspection Interval8,000 miles (13,000 km) miles

Wheels, Tires & Inflation Pressures

Matched 2-Tire Sets →

Front Tire Dimensions110/70-17

Cold Front Inflation Pressure29 PSI (Cold)

Rear Tire Dimensions140/70-17

Cold Rear Inflation Pressure36 PSI (Cold)

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

Verified OEM Wheel Fitment: 110/70-17 (F) + 140/70-17 (R)

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Official NHTSA Safety Recalls & Technical Bulletins

2 Active Campaigns

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

Verify VIN on NHTSA.gov

The U.S. National Highway Traffic Safety Administration reports 2 safety recall campaigns associated with this platform. Independent repair shops and riders should confirm that authorized dealership warranty remedies have been applied.

NHTSA #21V048000EQUIPMENT:OTHER:LABELS

Received: 03/02/2021▼

Defect Description

Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2019-2021 YZF-R3 motorcycles, 2019-2020 XMAX (CDZ300) scooters, and 2020 MT03 motorcycles. The Vehicle Identification Number (VIN) printed on the Federal Certification label may not match the VIN stamped on the vehicle. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."

Safety Hazard / Consequence

The owner, referencing an incorrect VIN label, may not recognize their vehicle is involved in a safety recall, and may not have the recall remedy performed, which could increase the risk of injury, fire or a crash.

Factory Remedy & Repair Action

Yamaha will notify owners, and dealers will install a correct certification label, free of charge. The recall began February 19, 2021. Owners may contact Yamaha customer service at 1-800-962-7926. Yamaha's number for this recall is 990144.

Manufacturer Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

NHTSA #20V611000VISIBILITY

Received: 05/10/2020▼

OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

1 Documented Bulletin

Bulletin #YAM-17V111Bulletin M2017-001R / Campaign 990112: YZF-R3 Fuel Tank Bracket & Main Ignition Switch

Source: Yamaha_YZFR3_Recall990112_FuelTankBracket.pdf

Mandated Torques:Torque: 1.2 N·m (0.12 m-kg, 10.6 in-lb) (Main Switch Torx T20 Retaining Screws - Do NOT overtighten)Torque: 100 N·m (Steering Stem Nut)

Consumable Specs:Vibration Damping Rubber GrommetsDielectric Grease

Genuine Part Numbers:90891-20291-001WD-H2501-02-00B04-H2501-01-001WD-F412Y-01-00LIT-11616-28-57

Chassis & Electrical ArchitectureExploded View: Fuel Tank Fitting Bracket & Main Ignition Switch (Recall 990112 / NHTSA 17V-111 & 17V-112)

1.2 N·m Torx (10.6 in-lb) • 100 N·m Stem Nut • Kit # 90891-20291-00

Click any bracket, switch, or torque node to inspect Recall 990112 specifications.

Inspection TargetRecall 990112 / M2017-001R

Revised Fuel Tank Fitting Front Bracket

Genuine OEM Part # 1WD-F412Y-01-00

Factory Mechanical Specification:7 N·m (5.1 ft-lb) Mounting Screws

RECALL 990112 COUNTERMEASURE: Re-engineered geometry with increased +5mm clearance gap between bracket flange and fuel tank wall to eliminate vibration contact wear permanently.

Interactive Assembly Nodes:

1-Click Factory Service KitOEM Spec Fluid Capacities Matched

Workshop Maintenance Kit & Factory Fluids

Authentic factory-grade motor oil, oil filter, and high-temp brake fluid matched precisely to 2021 Yamaha YZF-R3 capacities.

Full Kit Subtotal

$74.50

SPECS-TO-CART BUNDLESDedicated Direct-Fit Maintenance Bundles Available

Explore interactive 1-click oil change packs, brake flush kits & major tune-up bundles pre-measured for this 2021 Yamaha YZF-R3.

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10W-40 JASO MA2

Silkolene Pro 4 4T Synthetic Oil 10W-40 (4 Liter)

4-Liter Factory Full Jug

Matches factory 10W-40 spec (Oil spec: 2.10 L (2.22 US qt))

Item Price

$68.95

DOT 4 Synthetic Formula

EBC High-Performance DOT 4 Synthetic Brake Fluid

8.8 oz (250 ml) Workshop Bottle

Meets & exceeds factory DOT 4 specifications

Item Price

$5.55

Factory OEM Spark Plug Spec

NGK CR8E

Gap: 0.7 - 0.8 mm (0.028 - 0.031 in)

Inspection milestone: 8,000 miles (13,000 km) miles. Exact factory part specification.

Authentic OEM Reference

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Complete Workshop Maintenance Package3 Essential Service Items

Includes 10W-40 JASO MA2 engine oil (4-Liter Factory Full Jug), high-flow filter & DOT 4 fluid.

Kit Total

$74.50

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