Yamaha WR250X Supermoto (DG15J) — OEM Fluid, Tire Pressure & Maintenance Specs
250cc Liquid-Cooled Single DOHC 4-Valve Titanium Intake FI (Supermoto) · Source: Yamaha WR250X Supermoto (DG15J) (2008–2017) Official Owner’s Manual Maintenance Specifications
According to the Yamaha WR250X Supermoto (DG15J) (2008–2017) Official Owner’s Manual Maintenance Specifications, the 2008–2017 Yamaha WR250X Supermoto (DG15J) (chassis DG15J/3D7) requires 1.3 L (1.37 US qt) of SAE 10W-40 (JASO MA2, API SG or higher) engine oil for a drain-only change and 1.4 L (1.48 US qt) with filter service (5TA-13440-00 / HF140). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (110/70R17M/C 54H) and 200 kPa / 2.00 bar / 29 PSI rear (140/70R17M/C 66H), paired with 1× NGK CR9EK spark plug(s) and a YTZ7S battery.
Drain only: 1.3 L (1.37 US qt)
R 200 kPa (2.00 bar)
Est. Range: ~224 km (139 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 (Alt: SAE 15W-50 (Track)) · JASO MA2 · API SG or higher |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 1.3 L (1.37 US qt) • With filter/strainer: 1.4 L (1.48 US qt) • Complete dry overhaul: 1.5 L (1.59 US qt) |
| OEM Oil Filter Code & Type | 5TA-13440-00 / HF140 |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 110/70R17M/C 54H · Rear: 140/70R17M/C 66H (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 200 kPa / 2.00 bar / 29 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 225 kPa / 2.25 bar / 33 PSI |
| OEM Spark Plug & Quantity | NGK CR9EK × 1 (Gap: 0.6–0.7 mm) |
| OEM Battery Code & Rating | YTZ7S (12V 6.0Ah MF AGM) |
| Final Drive Maintenance | 520 Sealed Chain — Maintain 35–45 mm street-motard slack |
| Brake Fluid & Coolant | DOT 4 · Silicate-free ethylene-glycol OAT coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 250 cc · 30.7 hp @ 10,000 rpm · 23.7 N·m (17.5 lb-ft) @ 8,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 895 mm (35.2 in) · 136 kg (300 lbs) |
| Fuel Tank & Est. Real-World Range | 7.6 L (2.0 US gal) · ~29.5 km/L → ~224 km (139 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 3,000 km / 6,000 km • Air Filter / Spark Plug: 5,000 km / 10,000 km • Valve Clearance Check: 40,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Factory-built supermoto twin to the WR250R, equipping 17-inch wire-spoke wheels (still requiring inner tubes), a larger 298mm front rotor, stiffer springs, and 13/42T street gearing.
Oil & Clutch Mechanical Engineering Note
Sustaining high-rpm tarmac cornering on just 1.4 L of oil (with HF140 paper filter), use full-synthetic SAE 10W-40 JASO MA2 oil every 2,500–3,000 km.