Honda Little Cub 50 FI (AA01) — OEM Fluid, Tire Pressure & Maintenance Specs
49cc Air-Cooled Horizontal Single SOHC 2V + 14-Inch Spoked Wheels · Source: Honda Little Cub 50 FI (AA01) (1997–2016) Official Owner’s Manual Maintenance Specifications
According to the Honda Little Cub 50 FI (AA01) (1997–2016) Official Owner’s Manual Maintenance Specifications, the 1997–2016 Honda Little Cub 50 FI (AA01) (chassis C50/AA01) requires 0.6 L (0.63 US qt) of SAE 10W-30 (JASO MA, API SJ or higher) engine oil for a drain-only change and 0.6 L (0.63 US qt) with filter service (15421-035-010 (Screen + Spinner)). Standard solo cold tire pressure is 175 kPa / 1.75 bar / 25 PSI front (2.50-14 32L) and 200 kPa / 2.00 bar / 29 PSI rear (2.75-14 35L), paired with 1× NGK CR6HSA spark plug(s) and a YTZ5S / YTX4L-BS battery.
Drain only: 0.6 L (0.63 US qt)
R 200 kPa (2.00 bar)
Est. Range: ~231 km (144 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Centrifugal Semi-Auto 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: 0.6 L (0.63 US qt) • With filter/strainer: 0.6 L (0.63 US qt) • Complete dry overhaul: 0.8 L (0.85 US qt) |
| OEM Oil Filter Code & Type | 15421-035-010 (Screen + Spinner) |
| Correct Oil Level Check Method | Hold upright on level ground; rest dipstick UNTHREADED on filler neck (do NOT screw in) |
| Oil Drain Bolt Torque | 24 N·m (17.7 lb-ft / 2.45 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 2.50-14 32L · Rear: 2.75-14 35L (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 175 kPa / 1.75 bar / 25 PSI Rear: 200 kPa / 2.00 bar / 29 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 175 kPa / 1.75 bar / 25 PSI Rear: 200 kPa / 2.00 bar / 29 PSI |
| OEM Spark Plug & Quantity | NGK CR6HSA × 1 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTZ5S / YTX4L-BS (12V 3.5Ah MF AGM) |
| Final Drive Maintenance | 428 Drive Chain — Maintain 20–30 mm slack and lubricate regularly |
| Brake Fluid & Coolant | Mechanical Drum · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 49 cc · 3.4 hp @ 7,000 rpm · 3.8 N·m (2.8 lb-ft) @ 5,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 705 mm (27.8 in) · 81 kg (179 lbs) |
| Fuel Tank & Est. Real-World Range | 3.4 L (0.9 US gal) · ~68 km/L → ~231 km (144 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 6,000 km / 12,000 km • Air Filter / Spark Plug: 16,000 km / 12,000 km • Valve Clearance Check: 8,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Boutique 14-inch-wheel Cub lowering seat height to 705 mm with rounded legshields; switched from carburetor (3/4-speed) to PGM-FI fuel injection in late 2007.
Oil & Clutch Mechanical Engineering Note
Honda horizontal underbone with wet centrifugal semi-auto 4-speed clutch—strictly requires JASO MA oil (never JASO MB scooter oil).