Kawasaki Estrella 250 (BJ250) — OEM Fluid, Tire Pressure & Maintenance Specs
249cc Air-Cooled Single SOHC 2-Valve (Vertical Cylinder · Cabton Exhaust Classic) · Source: Kawasaki Estrella 250 (BJ250) (1992–2017) Official Owner’s Manual Maintenance Specifications
According to the Kawasaki Estrella 250 (BJ250) (1992–2017) Official Owner’s Manual Maintenance Specifications, the 1992–2017 Kawasaki Estrella 250 (BJ250) (chassis BJ250A/BJ250J) requires 1.7 L (1.80 US qt) of SAE 10W-40 (JASO MA2, API SG/SJ/SL) engine oil for a drain-only change and 1.8 L (1.90 US qt) with filter service (52010-1053 / HF112). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (90/90-18 M/C 51P) and 225 kPa / 2.25 bar / 33 PSI rear (110/90-17 M/C 60P), paired with 1× NGK CR8E / DPR8EA-9 spark plug(s) and a YTX7L-BS / YTX9-BS battery.
Drain only: 1.7 L (1.80 US qt)
R 225 kPa (2.25 bar)
Est. Range: ~429 km (267 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 10W-50) · JASO MA2 · API SG/SJ/SL |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 1.7 L (1.80 US qt) • With filter/strainer: 1.8 L (1.90 US qt) • Complete dry overhaul: 2 L (2.11 US qt) |
| OEM Oil Filter Code & Type | 52010-1053 / HF112 |
| 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: 90/90-18 M/C 51P · Rear: 110/90-17 M/C 60P (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 225 kPa / 2.25 bar / 33 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 250 kPa / 2.50 bar / 36 PSI |
| OEM Spark Plug & Quantity | NGK CR8E / DPR8EA-9 × 1 (Gap: 0.7–0.9 mm) |
| OEM Battery Code & Rating | YTX7L-BS / YTX9-BS (12V 6.0–8.0Ah MF AGM) |
| Final Drive Maintenance | 520 Sealed O/X-Ring Chain — Maintain 25–35 mm slack and lube every 800–1,000 km |
| Brake Fluid & Coolant | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 249 cc · 20 hp @ 7,500 rpm · 20 N·m (14.8 lb-ft) @ 5,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 735 mm (28.9 in) · 161 kg (355 lbs) |
| Fuel Tank & Est. Real-World Range | 13 L (3.4 US gal) · ~33 km/L → ~429 km (267 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 6,000 km / 12,000 km • Air Filter / Spark Plug: 12,000 km / 12,000 km • Valve Clearance Check: 12,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Produced for 25 years (1992–2017) with timeless vertical-cylinder proportions, transitioning to fuel injection in 2007 (BJ250J) and taking 1.8 L w/ HF112.
Oil & Clutch Mechanical Engineering Note
Kawasaki single-cylinder retro & dual-sport family (Z125, W230, KLX230/250/300, KLR650) running internal paper element HF112 and SAE 10W-40 JASO MA2.