Suzuki Swish 125 — OEM Fluid, Tire Pressure & Maintenance Specs
124cc Air-Cooled Single SOHC 2-Valve SEP (Front Apron Fuel Filler · Dual Rear Shocks) · Source: Suzuki Swish 125 (2018–2023) Official Owner’s Manual Maintenance Specifications
According to the Suzuki Swish 125 (2018–2023) Official Owner’s Manual Maintenance Specifications, the 2018–2023 Suzuki Swish 125 (chassis DV12B/UG125) 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 175 kPa / 1.75 bar / 25 PSI front (100/90-10 56J) and 200 kPa / 2.00 bar / 29 PSI rear (100/90-10 56J), 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 200 kPa (2.00 bar)
Est. Range: ~300 km (186 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: 0.8 L (0.85 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 | 100 ml (0.10 L) — SAE 10W-40 (100 ml rear reduction gear oil) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/90-10 56J · Rear: 100/90-10 56J (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: 175 kPa / 1.75 bar / 25 PSI Rear: 225 kPa / 2.25 bar / 33 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 | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 124 cc · 9.4 hp @ 7,000 rpm · 10 N·m (7.4 lb-ft) @ 6,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 760 mm (29.9 in) · 114 kg (251 lbs) |
| Fuel Tank & Est. Real-World Range | 6 L (1.6 US gal) · ~50 km/L → ~300 km (186 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
Developed by Tai Ling Suzuki for Taiwan, Japan, and Korea (DV12B), featuring an underfloor 6.0 L fuel tank with front-apron filler, GSX-R-inspired LED headlight, and twin rear shocks.
Oil & Clutch Mechanical Engineering Note
With a scant 0.65 L drain refill of SAE 10W-40 JASO MB oil, checking the resting unscrewed dipstick every 1,000 km prevents low-level oil starvation.
Garage Wrenching Gotchas
- Because the 6.0 L fuel tank sits beneath the flat floorboard, inspect the underbody guard and fuel pump quick-fitting after any hard curb bottom-out.
- Front and rear share identical 100/90-10 tires, but rear tire service requires dropping the exhaust—always keep a fresh header copper crush gasket on hand.
5. Frequently Asked Questions (FAQ)
What are the engine oil and rear hub gear oil capacities for the Suzuki Swish 125 scooter?
With an isolated dry CVT belt case, the engine requires 0.65 L drain-only or 0.7 L (0.74 US qt) with filter/screen (16520-32G00 (Strainer Screen)) of SAE 10W-40 (JASO MB). Service the rear reduction hub separately (final drive 100 ml).
How do you accurately check the oil level on the Swish 125, and what are its service intervals?
Hold the bike upright on level ground 2–3 minutes after shutdown, wipe the dipstick, and rest it on the filler threads without screwing it in (threading it in reads artificially high and risks oil starvation). Torque the drain plug to 18 N·m with a new crush washer. Factory oil change intervals are every 4,000 km, with valve clearance inspection every 12,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the Swish 125?
Fitted with 100/90-10 56J front and 100/90-10 56J rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 25 / 29 PSI (175/200 kPa) solo or 25 / 33 PSI loaded. Seat height is 760 mm (29.9 in) at 114 kg wet weight, delivering ~300 km per 6 L tank.