VERIFIED DIRECT-FIT2002 - 2026 MODEL RANGE125cc Liquid-Cooled 2-Stroke Reed-Valve YPVSAGENT API/api/bundles/yamaha-yz125-2t-2023
2023 Yamaha YZ125 2-Stroke Direct-Fit Service Bundles
Curated workshop maintenance packages sized and calibrated directly from verified OEM service documentation. Choose a package below, customize individual consumables, and order your complete service kit with 1-click checkout.
FACTORY WORKSHOP MANUAL DATA
Verified OEM Service Specs
OIL CAPACITY
OEM Spec
DRAIN TORQUE
20 Nm (14.5 ft-lb) - M12 Drain Bolt
Fresh Crush Washer
SPARK PLUG
NGK BR9EIX Iridium / BR9EG (0.6 - 0.7 mm Gap)
Gap: 0.8mm
BRAKE FLUID
DOT 4 High-Boiling Synthetic Racing Fluid
Tires: 12 - 14 PSI Front (80/100-21) / 12 - 14 PSI Rear (100/90-19)
| Parameter | Specification |
|---|---|
| Engine Oil | Scope: Torque: 20 Nm (14.5 ft-lb) - M12 Drain Bolt |
| Spark Plugs | NGK BR9EIX Iridium / BR9EG (0.6 - 0.7 mm Gap) |
| Drive Chain | 520 Pitch, 112 Links |
| Brake Fluid | DOT 4 High-Boiling Synthetic Racing Fluid |
| Tire Pressure | 12 - 14 PSI Front (80/100-21) / 12 - 14 PSI Rear (100/90-19) |
Essential 125cc Track Pack2 Included Consumables
YZ125 High-RPM Competition Gearbox & Driveline Kit
Motul 7100 10W-40 synthetic transmission oil (1 liter, exact 660mL sump capacity), and BikeMaster professional aerosol chain wax for 520 competition chain.
Matches 660mL YZ125 GearboxIn StockQty: 1
MOTUL 7100 4T Oil
Engineered for 11,500+ RPM transmission gear speeds and aggressive clutch slip.
MPN: 114844DPN1: 82-2051SKU: 10114844
$26.06
520 Competition Driveline SafeIn StockQty: 1
BikeMaster Professional Chain Wax (10 oz Aerosol)
Reduces parasitic horsepower drag on 125cc small-bore drivetrains.
MPN: 532705DPN1: bkm532705SKU: 40532705
$10.00
Selected Bundle Subtotal2 of 2 Items Selected
Direct warehouse drop-ship. Standard delivery calculated at checkout.
Bundle Total
$36.06
WORKSHOP REFERENCE & FAQ
Factory Maintenance Specifications & Service Q&A
Essential service data verified against OEM workshop manuals for 2023 Yamaha YZ125 2-Stroke owners and DIY technicians.