KYMCO People S 125i — OEM Fluid, Tire Pressure & Maintenance Specs
125cc Forced Air-Cooled Single SOHC 4-Valve G5-Eco High-Wheel · Source: KYMCO People S 125i (2018–Present) Official Owner’s Manual Maintenance Specifications
According to the KYMCO People S 125i (2018–Present) Official Owner’s Manual Maintenance Specifications, the 2018–Present KYMCO People S 125i (chassis TD25AA/D8-A0) requires 0.8 L (0.85 US qt) of SAE 10W-40 (JASO MB, API SJ/SL Synthetic 10W-40) engine oil for a drain-only change and 0.9 L (0.95 US qt) with filter service (15421-LDC8-E10 (Strainer Screen)). Standard solo cold tire pressure is 175 kPa / 1.75 bar / 25 PSI front (100/80-16 50P) and 200 kPa / 2.00 bar / 29 PSI rear (120/80-14 58P), paired with 1× NGK CR7E / LR7D spark plug(s) and a YTX7A-BS battery.
Drain only: 0.8 L (0.85 US qt)
R 200 kPa (2.00 bar)
Est. Range: ~242 km (150 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Dry Centrifugal CVT Belt Drive |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 (Alt: SAE 5W-50) · JASO MB · API SJ/SL Synthetic 10W-40 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 0.8 L (0.85 US qt) • With filter/strainer: 0.9 L (0.95 US qt) • Complete dry overhaul: 0.95 L (1.00 US qt) |
| OEM Oil Filter Code & Type | 15421-LDC8-E10 (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 | 25 N·m (18.4 lb-ft / 2.55 kgf·m) — Use fresh crush washer |
| Final Drive / Bevel Gear Oil | 120 ml (0.12 L) — SAE 80W-90 / SAE 90 Hypoid Gear Oil (180–230 ml) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/80-16 50P · Rear: 120/80-14 58P (Tubeless) |
|---|---|
| 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: 185 kPa / 1.85 bar / 27 PSI Rear: 225 kPa / 2.25 bar / 33 PSI |
| OEM Spark Plug & Quantity | NGK CR7E / LR7D × 1 (Gap: 0.7–0.8 mm) |
| OEM Battery Code & Rating | YTX7A-BS (12V 6.0Ah MF AGM) |
| Final Drive Maintenance | Dry Centrifugal V-Belt CVT — Inspect/replace V-belt and rollers every 15,000–20,000 km |
| Brake Fluid & Coolant | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 125 cc · 11.2 hp @ 8,500 rpm · 10.4 N·m (7.7 lb-ft) @ 7,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 780 mm (30.7 in) · 130 kg (287 lbs) |
| Fuel Tank & Est. Real-World Range | 6.2 L (1.6 US gal) · ~39 km/L → ~242 km (150 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 300 km • Engine Oil / Filter: 3,000 km / 6,000 km • Air Filter / Spark Plug: 10,000 km / 10,000 km • Valve Clearance Check: 15,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
European high-wheel favorite pairing 16-inch front / 14-inch rear wheels, dual-channel Bosch ABS, and a smooth 4-valve air-cooled G5-Eco single.
Oil & Clutch Mechanical Engineering Note
Compact 0.8 L air-cooled 4-valve sump relies on clean SAE 10W-40 JASO MB synthetic oil every 3,000 km plus 120 ml of SAE 80W-90 hub oil.