Yamaha YZF-R15M / R15 V4 — OEM Fluid, Tire Pressure & Maintenance Specs
155cc Liquid-Cooled Single SOHC 4-Valve VVA Slipper Clutch (TCS / QS) · Source: Yamaha YZF-R15M / R15 V4 (2021–Present) Official Owner’s Manual Maintenance Specifications
According to the Yamaha YZF-R15M / R15 V4 (2021–Present) Official Owner’s Manual Maintenance Specifications, the 2021–Present Yamaha YZF-R15M / R15 V4 (chassis B7D/BGF/RG86) 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 (100/80-17M/C 52P) and 225 kPa / 2.25 bar / 33 PSI rear (140/70R17M/C 66H), 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: ~473 km (294 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: 100/80-17M/C 52P · Rear: 140/70R17M/C 66H (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: 225 kPa / 2.25 bar / 33 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 | 155 cc · 18.4 hp @ 10,000 rpm · 14.2 N·m (10.5 lb-ft) @ 7,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 815 mm (32.1 in) · 141 kg (311 lbs) |
| Fuel Tank & Est. Real-World Range | 11 L (2.9 US gal) · ~43 km/L → ~473 km (294 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
Building on the 2017 V3 VVA platform, the late-2021 V4 and R15M introduced 37mm KYB upside-down forks, single-pod bi-LED aero bodywork, traction control, and an up-quickshifter.
Oil & Clutch Mechanical Engineering Note
Activating its VVA high-lift cam lobe at 7,400 rpm with only 0.95 L of oil (with HF141 filter), fresh SAE 10W-40 JASO MA2 synthetic every 2,500 km keeps quickshifts crisp.
Garage Wrenching Gotchas
- Indian-built BGF imports use ByBre front calipers whereas Indonesian/Japanese-spec units use different pad backing plates—verify caliper casting marks before ordering brake pads.
- Excessive 428 chain slack causes harsh cut-times and false neutrals on the up-quickshifter; inspect and set chain slack every 800 km.
5. Frequently Asked Questions (FAQ)
What oil volume, JASO grade, and oil filter code does the Yamaha YZF-R15M / R15 V4 (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 YZF-R15M / R15 V4, 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 YZF-R15M / R15 V4?
Fitted with 100/80-17M/C 52P front and 140/70R17M/C 66H rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 29 / 33 PSI (200/225 kPa) solo or 29 / 33 PSI loaded. Seat height is 815 mm (32.1 in) at 141 kg wet weight, delivering ~473 km per 11 L tank.