Suzuki Boulevard C90 / B.O.S.S. (VL1500) — OEM Fluid, Tire Pressure & Maintenance Specs
1,462cc Liquid-Cooled 54° V-Twin DOHC 8-Valve (Dual-Spark · Shaft Touring Cruiser) · Source: Suzuki Boulevard C90 / B.O.S.S. (VL1500) (2013–2019) Official Owner’s Manual Maintenance Specifications
According to the Suzuki Boulevard C90 / B.O.S.S. (VL1500) (2013–2019) Official Owner’s Manual Maintenance Specifications, the 2013–2019 Suzuki Boulevard C90 / B.O.S.S. (VL1500) (chassis VL1500BT/WVAL) requires 3.1 L (3.28 US qt) of SAE 10W-40 (JASO MA2, API SJ/SL/SM/SN) engine oil for a drain-only change and 3.3 L (3.49 US qt) with filter service (16510-07J00 / HF138 (M20×1.0 Fine Thread)). Standard solo cold tire pressure is 250 kPa / 2.50 bar / 36 PSI front (130/80 R17 M/C 65H) and 290 kPa / 2.90 bar / 42 PSI rear (200/60 R16 M/C 79H), paired with 4× NGK CR7E spark plug(s) and a YTX20CH-BS battery.
Drain only: 3.1 L (3.28 US qt)
R 290 kPa (2.90 bar)
Est. Range: ~297 km (185 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 (Alt: SAE 10W-50) · JASO MA2 · API SJ/SL/SM/SN |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.1 L (3.28 US qt) • With filter/strainer: 3.3 L (3.49 US qt) • Complete dry overhaul: 3.9 L (4.12 US qt) |
| OEM Oil Filter Code & Type | 16510-07J00 / HF138 (M20×1.0 Fine Thread) |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| Oil Drain Bolt Torque | 23 N·m (17.0 lb-ft / 2.35 kgf·m) — Use fresh crush washer |
| Final Drive / Bevel Gear Oil | 210 ml (0.21 L) — Hypoid Gear Oil SAE 80W-90 GL-5 (210 ml shaft final drive) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 130/80 R17 M/C 65H · Rear: 200/60 R16 M/C 79H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK CR7E × 4 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTX20CH-BS (12V 18.0Ah Heavy-Duty AGM) |
| Final Drive Maintenance | Enclosed Shaft Drive — Hypoid Gear Oil SAE 80W-90 GL-5 (210 ml) |
| 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 | 1462 cc · 79 hp @ 4,800 rpm · 131 N·m (96.6 lb-ft) @ 2,600 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 720 mm (28.3 in) · 363 kg (800 lbs) |
| Fuel Tank & Est. Real-World Range | 18 L (4.8 US gal) · ~16.5 km/L → ~297 km (185 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 6,000 km / 18,000 km • Air Filter / Spark Plug: 18,000 km / 12,000 km • Valve Clearance Check: 24,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Overhauled in 2013 adopting the M90-derived liquid-cooled DOHC 1,462cc V-twin, back-torque-limiting clutch, and shaft final drive.
Oil & Clutch Mechanical Engineering Note
Suzuki multi-cylinder family exclusively uses a proprietary M20×1.0 fine-thread spin-on filter (16510-07J00 / HF138)—never force an M20×1.5 filter onto the boss.