Kawasaki W230 — OEM Fluid, Tire Pressure & Maintenance Specs
233cc Air-Cooled Single-Cylinder SOHC 2-Valve (Heavy Flywheel · Double-Cradle Frame) · Source: Kawasaki W230 (2025–Present) Official Owner’s Manual Maintenance Specifications
According to the Kawasaki W230 (2025–Present) Official Owner’s Manual Maintenance Specifications, the 2025–Present Kawasaki W230 (chassis BJ230A) 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 (90/90-18 M/C 51S) and 225 kPa / 2.25 bar / 33 PSI rear (110/90-17 M/C 60S), paired with 1× NGK LMAR9G 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: ~432 km (268 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: 90/90-18 M/C 51S · Rear: 110/90-17 M/C 60S (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 LMAR9G × 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 | 233 cc · 17.5 hp @ 7,000 rpm · 18.6 N·m (13.7 lb-ft) @ 5,800 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 745 mm (29.3 in) · 143 kg (315 lbs) |
| Fuel Tank & Est. Real-World Range | 12 L (3.2 US gal) · ~36 km/L → ~432 km (268 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
Introduced for 2025 (BJ230A) as the spiritual successor to the Estrella 250, tuning the 233cc KLX230 air-cooled single with sculpted cooling fins, heavier flywheel inertia, and a low 745 mm steel chassis.
Oil & Clutch Mechanical Engineering Note
Holding only 1.1 L of oil with internal paper element 52010-1053 (HF112), the air-cooled 233cc single relies heavily on fresh SAE 10W-40 JASO MA2 during warm urban commuting.
Garage Wrenching Gotchas
- Chrome 18-inch front and 17-inch rear wire-spoke wheels use inner tubes; inspect rubber rim strips whenever mounting fresh tires to prevent spoke-nipple punctures.
- Tighten the right-case oil filter cover bolts lightly and evenly (~9 N·m) after verifying the filter spring and O-ring seal seating.
5. Frequently Asked Questions (FAQ)
What oil volume, JASO grade, and oil filter code does the Kawasaki W230 (2025–Present) require?
Because its wet multi-plate clutch shares engine oil with the gearbox, run SAE 10W-40 (JASO MA2) at 1 L (1.06 US qt) drain-only and 1.1 L (1.16 US qt) with filter (52010-1053 / HF112).
How do you accurately check the oil level on the W230, 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 6,000 km, with valve clearance inspection every 12,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the W230?
Equipped with 90/90-18 M/C 51S front and 110/90-17 M/C 60S rear tube-type rims (mushroom/string plugs will not seal—carry spare inner tubes), set cold tire pressures to 29 / 33 PSI (200/225 kPa) solo or 29 / 36 PSI loaded. Seat height is 745 mm (29.3 in) at 143 kg wet weight, delivering ~432 km per 12 L tank.