Suzuki Let's 50 (CA4AA) — OEM Fluid, Tire Pressure & Maintenance Specs
49cc Air-Cooled 4-Stroke Single SOHC 2-Valve SEP (70 kg JDM Micro Commuter) · Source: Suzuki Let's 50 (CA4AA) (2015–Present) Official Owner’s Manual Maintenance Specifications
According to the Suzuki Let's 50 (CA4AA) (2015–Present) Official Owner’s Manual Maintenance Specifications, the 2015–Present Suzuki Let's 50 (CA4AA) (chassis CA4AA) requires 0.65 L (0.69 US qt) of SAE 10W-40 (JASO MB, API SJ/SL) engine oil for a drain-only change and 0.7 L (0.74 US qt) with filter service (16520-32G00 (Strainer Screen)). Standard solo cold tire pressure is 125 kPa / 1.25 bar / 18 PSI front (80/90-10 35J) and 175 kPa / 1.75 bar / 25 PSI rear (80/90-10 35J), paired with 1× NGK MR8E-9 / CR6HSA spark plug(s) and a YTX7A-BS / FTZ6V battery.
Drain only: 0.65 L (0.69 US qt)
R 175 kPa (1.75 bar)
Est. Range: ~317 km (197 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Dry Centrifugal CVT Belt Drive |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 (Alt: SAE 10W-30) · JASO MB · API SJ/SL |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 0.65 L (0.69 US qt) • With filter/strainer: 0.7 L (0.74 US qt) • Complete dry overhaul: 0.75 L (0.79 US qt) |
| OEM Oil Filter Code & Type | 16520-32G00 (Strainer Screen) |
| Correct Oil Level Check Method | Hold upright on level ground; rest dipstick UNTHREADED on filler neck (do NOT screw in) |
| Oil Drain Bolt Torque | 18 N·m (13.3 lb-ft / 1.84 kgf·m) — Use fresh crush washer |
| Final Drive / Bevel Gear Oil | 80 ml (0.08 L) — SAE 10W-40 (80 ml rear gear oil) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 80/90-10 35J · Rear: 80/90-10 35J (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 125 kPa / 1.25 bar / 18 PSI Rear: 175 kPa / 1.75 bar / 25 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 125 kPa / 1.25 bar / 18 PSI Rear: 175 kPa / 1.75 bar / 25 PSI |
| OEM Spark Plug & Quantity | NGK MR8E-9 / CR6HSA × 1 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTX7A-BS / FTZ6V (12V 6.0Ah MF AGM) |
| Final Drive Maintenance | Dry V-Belt CVT Drive — Inspect/replace V-belt and rollers every 20,000–24,000 km |
| 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 · 3.7 hp @ 8,500 rpm · 3.4 N·m (2.5 lb-ft) @ 7,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 695 mm (27.4 in) · 70 kg (154 lbs) |
| Fuel Tank & Est. Real-World Range | 4.8 L (1.3 US gal) · ~66 km/L → ~317 km (197 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 4,000 km / 8,000 km • Air Filter / Spark Plug: 12,000 km / 8,000 km • Valve Clearance Check: 12,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Ultra-light 70 kg Japanese-built 49cc 4-stroke SEP commuter delivering 65+ km/L economy with front/rear mechanical drum brakes.
Oil & Clutch Mechanical Engineering Note
Suzuki SEP air-cooled 125cc dry-CVT scooter platform (Address, Avenis, Burgman 125, Swish) holding ~0.7 L of SAE 10W-40 JASO MB oil.