Honda CBR250RR Inline-Four (MC22) — OEM Fluid, Tire Pressure & Maintenance Specs
249cc Liquid-Cooled Inline-4 DOHC 16V Gear-Driven Cams · Source: Honda CBR250RR Inline-Four (MC22) (1990–1999) Official Owner’s Manual Maintenance Specifications
According to the Honda CBR250RR Inline-Four (MC22) (1990–1999) Official Owner’s Manual Maintenance Specifications, the 1990–1999 Honda CBR250RR Inline-Four (MC22) (chassis MC22) requires 2.5 L (2.64 US qt) of SAE 10W-30 (JASO MA, API SJ or higher) engine oil for a drain-only change and 2.7 L (2.85 US qt) with filter service (15410-MM9-013 / HF303). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (110/70R17 54H) and 225 kPa / 2.25 bar / 33 PSI rear (140/60R17 63H), paired with 4× NGK CR9EH-9 spark plug(s) and a YTZ8V battery.
Drain only: 2.5 L (2.64 US qt)
R 225 kPa (2.25 bar)
Est. Range: ~260 km (162 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-30 (Alt: SAE 10W-40) · JASO MA · API SJ or higher |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.5 L (2.64 US qt) • With filter/strainer: 2.7 L (2.85 US qt) • Complete dry overhaul: 3.1 L (3.28 US qt) |
| OEM Oil Filter Code & Type | 15410-MM9-013 / HF303 |
| 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 | 30 N·m (22.1 lb-ft / 3.06 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 110/70R17 54H · Rear: 140/60R17 63H (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 CR9EH-9 × 4 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTZ8V (12V 7.0Ah 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 for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 249 cc · 45 hp @ 15,000 rpm · 23.5 N·m (17.3 lb-ft) @ 12,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 725 mm (28.5 in) · 157 kg (346 lbs) |
| Fuel Tank & Est. Real-World Range | 13 L (3.4 US gal) · ~20 km/L → ~260 km (162 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 10,000 km / 10,000 km • Air Filter / Spark Plug: 18,000 km / 24,000 km • Valve Clearance Check: 24,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
19,000 rpm gear-driven-cam 249cc inline-four legend: 1990–1993 unrestricted 45 hp models vs 1994+ 40 hp JDM-capped models, taking M20 thread filter HF303 (2.7 L).
Oil & Clutch Mechanical Engineering Note
High-revving Honda 250cc parallel-twin platform pairing a spin-on filter (HF204) with shear-stable SAE 10W-30/10W-40 JASO MA synthetic oil.