Yamaha WR250R (DG15J DOHC) — OEM Fluid, Tire Pressure & Maintenance Specs
250cc Liquid-Cooled Single DOHC 4-Valve Titanium Intake FI (Dual-Sport) · Source: Yamaha WR250R (DG15J DOHC) (2008–2020) Official Owner’s Manual Maintenance Specifications
According to the Yamaha WR250R (DG15J DOHC) (2008–2020) Official Owner’s Manual Maintenance Specifications, the 2008–2020 Yamaha WR250R (DG15J DOHC) (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 150 kPa / 1.50 bar / 22 PSI front (80/100-21M/C 51P) and 175 kPa / 1.75 bar / 25 PSI rear (120/80-18M/C 62P), paired with 1× NGK CR9EK spark plug(s) and a YTZ7S battery.
Drain only: 1.3 L (1.37 US qt)
R 175 kPa (1.75 bar)
Est. Range: ~220 km (137 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: 80/100-21M/C 51P · Rear: 120/80-18M/C 62P (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 150 kPa / 1.50 bar / 22 PSI Rear: 175 kPa / 1.75 bar / 25 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 150 kPa / 1.50 bar / 22 PSI Rear: 200 kPa / 2.00 bar / 29 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 O-Ring Chain — Maintain 40–55 mm off-road suspension 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 | 930 mm (36.6 in) · 134 kg (295 lbs) |
| Fuel Tank & Est. Real-World Range | 7.6 L (2.0 US gal) · ~29 km/L → ~220 km (137 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 3,000 km / 6,000 km • Air Filter / Spark Plug: 3,000 km / 10,000 km • Valve Clearance Check: 40,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Completely distinct from the competition-only WR250F enduro, the street-legal DG15J WR250R paired a 10,000 rpm titanium-valve DOHC single with an astonishing 40,000 km valve check interval.
Oil & Clutch Mechanical Engineering Note
Using internal paper element HF140, its high-revving 250cc DOHC single holds 1.4 L w/ filter (1.3 L drain) of SAE 10W-40 JASO MA2 synthetic oil—refresh every 2,000–3,000 km off-road.
Garage Wrenching Gotchas
- Inspect the upper rubber swingarm chain slider relentlessly—dropping below the stock 13T countershaft sprocket saws rapidly through the guard into the aluminum swingarm.
- Before buying aftermarket lowering links for its tall 930 mm saddle, note the OEM rear shock clevis has built-in ride-height threading allowing ~25 mm factory lowering.
5. Frequently Asked Questions (FAQ)
What oil volume, JASO grade, and oil filter code does the Yamaha WR250R (DG15J DOHC) (2008–2020) require?
Because its wet multi-plate clutch shares engine oil with the gearbox, run SAE 10W-40 (JASO MA2) at 1.3 L (1.37 US qt) drain-only and 1.4 L (1.48 US qt) with filter (5TA-13440-00 / HF140).
How do you accurately check the oil level on the WR250R (DG15J DOHC), and what are its service intervals?
Hold the motorcycle dead-vertical on level ground 2–3 minutes after warm shutdown and verify the oil sits mid-way between the Upper and Lower marks in the crankcase sight glass—never on the sidestand. Torque the drain plug to 20 N·m with a new crush washer. Factory oil change intervals are every 3,000 km, with valve clearance inspection every 40,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the WR250R (DG15J DOHC)?
Equipped with 80/100-21M/C 51P front and 120/80-18M/C 62P rear tube-type rims (mushroom/string plugs will not seal—carry spare inner tubes), set cold tire pressures to 22 / 25 PSI (150/175 kPa) solo or 22 / 29 PSI loaded. Seat height is 930 mm (36.6 in) at 134 kg wet weight, delivering ~220 km per 7.6 L tank.