Yamaha XSR125 (RE44 VVA) — OEM Fluid, Tire Pressure & Maintenance Specs
125cc Liquid-Cooled Single SOHC 4-Valve VVA (Sport Heritage) · Source: Yamaha XSR125 (RE44 VVA) (2021–Present) Official Owner’s Manual Maintenance Specifications
According to the Yamaha XSR125 (RE44 VVA) (2021–Present) Official Owner’s Manual Maintenance Specifications, the 2021–Present Yamaha XSR125 (RE44 VVA) (chassis RE44/BKR) requires 0.85 L (0.90 US qt) of SAE 10W-40 (JASO MA2, API SG or higher) engine oil for a drain-only change and 0.95 L (1.00 US qt) with filter service (1S7-E3440-00 / HF141). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (110/70-17M/C 54S) and 225 kPa / 2.25 bar / 33 PSI rear (140/70-17M/C 66S), paired with 1× NGK MR8E-9 spark plug(s) and a YTZ6V / YTX7L-BS battery.
Drain only: 0.85 L (0.90 US qt)
R 225 kPa (2.25 bar)
Est. Range: ~506 km (314 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 · JASO MA2 · API SG or higher |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 0.85 L (0.90 US qt) • With filter/strainer: 0.95 L (1.00 US qt) • Complete dry overhaul: 1.05 L (1.11 US qt) |
| OEM Oil Filter Code & Type | 1S7-E3440-00 / HF141 |
| Correct Oil Level Check Method | Hold upright on level ground; rest dipstick UNTHREADED on filler neck (do NOT screw in) |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 110/70-17M/C 54S · Rear: 140/70-17M/C 66S (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: 250 kPa / 2.50 bar / 36 PSI |
| OEM Spark Plug & Quantity | NGK MR8E-9 × 1 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTZ6V / YTX7L-BS (12V 5.0–6.0Ah MF AGM) |
| Final Drive Maintenance | 428 Drive Chain — Maintain 20–30 mm slack and lubricate regularly |
| 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 | 125 cc · 15 hp @ 10,000 rpm · 11.5 N·m (8.5 lb-ft) @ 8,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 815 mm (32.1 in) · 140 kg (309 lbs) |
| Fuel Tank & Est. Real-World Range | 11 L (2.9 US gal) · ~46 km/L → ~506 km (314 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 3,000 km / 6,000 km • Air Filter / Spark Plug: 12,000 km / 9,000 km • Valve Clearance Check: 12,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Launched in 2021 on chassis RE44 alongside the Asian XSR155, standard cast-wheel models run tubeless tires whereas the wire-spoke XSR125 Legacy trim requires inner tubes.
Oil & Clutch Mechanical Engineering Note
Beneath its retro tank sits the exact high-revving 125cc VVA engine from the R125, holding 0.95 L with paper filter HF141 and requiring SAE 10W-40 JASO MA2 oil.
Garage Wrenching Gotchas
- If servicing the wire-spoked XSR125 Legacy edition, remember the rims require inner tubes—carry a spare tube or patch kit rather than tubeless plug strips.
- Brush road grit away from the under-fender seat mounting bolts before removal so sand does not bind the subframe captive nuts when accessing the battery.
5. Frequently Asked Questions (FAQ)
What oil volume, JASO grade, and oil filter code does the Yamaha XSR125 (RE44 VVA) (2021–Present) require?
Because its wet multi-plate clutch shares engine oil with the gearbox, run SAE 10W-40 (JASO MA2) at 0.85 L (0.90 US qt) drain-only and 0.95 L (1.00 US qt) with filter (1S7-E3440-00 / HF141).
How do you accurately check the oil level on the XSR125 (RE44 VVA), 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 20 N·m with a new crush washer. Factory oil change intervals are every 3,000 km, with valve clearance inspection every 12,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the XSR125 (RE44 VVA)?
Fitted with 110/70-17M/C 54S front and 140/70-17M/C 66S rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 29 / 33 PSI (200/225 kPa) solo or 29 / 36 PSI loaded. Seat height is 815 mm (32.1 in) at 140 kg wet weight, delivering ~506 km per 11 L tank.