Kawasaki Ninja 125 — OEM Fluid, Tire Pressure & Maintenance Specs
125cc Liquid-Cooled Single DOHC 4-Valve (Full-Size A1 Trellis Supersport) · Source: Kawasaki Ninja 125 (2019–Present) Official Owner’s Manual Maintenance Specifications
According to the Kawasaki Ninja 125 (2019–Present) Official Owner’s Manual Maintenance Specifications, the 2019–Present Kawasaki Ninja 125 (chassis BX125A) requires 1 L (1.06 US qt) of SAE 10W-40 (JASO MA2, API SG/SJ/SL) engine oil for a drain-only change and 1.1 L (1.16 US qt) with filter service (52010-1053 / HF112). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (100/80-17 M/C 52S) and 225 kPa / 2.25 bar / 33 PSI rear (130/70-17 M/C 62S), paired with 1× NGK CR8E / DPR8EA-9 spark plug(s) and a YTX7L-BS / YTX9-BS battery.
Drain only: 1 L (1.06 US qt)
R 225 kPa (2.25 bar)
Est. Range: ~407 km (253 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 L (1.06 US qt) • With filter/strainer: 1.1 L (1.16 US qt) • Complete dry overhaul: 1.3 L (1.37 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: 100/80-17 M/C 52S · Rear: 130/70-17 M/C 62S (Tubeless) |
|---|---|
| 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: 225 kPa / 2.25 bar / 33 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 · Silicate-free ethylene-glycol OAT coolant (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 125 cc · 15 hp @ 10,000 rpm · 11.7 N·m (8.6 lb-ft) @ 7,700 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 785 mm (30.9 in) · 148 kg (326 lbs) |
| Fuel Tank & Est. Real-World Range | 11 L (2.9 US gal) · ~37 km/L → ~407 km (253 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
Built on the full-size Ninja 250SL tubular trellis frame for European A1 riders with a liquid-cooled 15 hp DOHC single.
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.