DOC // MSL-HONDA-CB400SS
CHASSIS: NC41
YEARS: 2001–2008
VERIFIED: 2026-11-10
JASO MA
Tube-Type Rim (Inner Tube)
ARCHIVE SPEC SHEET
Honda CB400SS (NC41) — OEM Fluid, Tire Pressure & Maintenance Specs
397cc Air-Cooled Single SOHC 4V RFVC Dry-Sump · Source: Honda CB400SS (NC41) (2001–2008) Official Owner’s Manual Maintenance Specifications
OEM SPECIFICATION SUMMARY
According to the Honda CB400SS (NC41) (2001–2008) Official Owner’s Manual Maintenance Specifications, the 2001–2008 Honda CB400SS (NC41) (chassis NC41) requires 1.7 L (1.80 US qt) of SAE 10W-30 (JASO MA, API SG/SJ or higher) engine oil for a drain-only change and 1.8 L (1.90 US qt) with filter service (15412-HM5-A10 / HF113). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (100/90-19M/C 57S) and 200 kPa / 2.00 bar / 29 PSI rear (110/90-18M/C 61S), paired with 1× NGK DPR8Z spark plug(s) and a YTZ10S battery.
Engine Oil (With Filter)
1.8 L (1.90 US qt)
SAE 10W-30 · JASO MA
Drain only: 1.7 L (1.80 US qt)
Drain only: 1.7 L (1.80 US qt)
Cold Tire Pressure (Solo)
F 29 / R 29 PSI
F 200 kPa (2.00 bar)
R 200 kPa (2.00 bar)
R 200 kPa (2.00 bar)
OEM Spark Plug
NGK DPR8Z ×1
Gap: 0.8–0.9 mm
Seat · Wet Weight · Range
790 mm · 159 kg
31.1 in · 351 lbs
Est. Range: ~308 km (191 mi)
Est. Range: ~308 km (191 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-30 (Alt: SAE 10W-40) · JASO MA · API SG/SJ or higher |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 1.7 L (1.80 US qt) • With filter/strainer: 1.8 L (1.90 US qt) • Complete dry overhaul: 2.2 L (2.32 US qt) |
| OEM Oil Filter Code & Type | 15412-HM5-A10 / HF113 |
| Correct Oil Level Check Method | Dry-sump oil tank — warm engine to operating temperature and check oil tank/frame dipstick immediately after shutdown per OEM procedure (never top up cold) |
| Oil Drain Bolt Torque | 30 N·m (22.1 lb-ft / 3.06 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/90-19M/C 57S · Rear: 110/90-18M/C 61S (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 200 kPa / 2.00 bar / 29 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 DPR8Z × 1 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTZ10S (12V 8.6Ah MF AGM) |
| Final Drive Maintenance | 525 Heavy-Duty Sealed X-Ring Chain — Maintain 25–35 mm slack and clean/lube regularly |
| Brake Fluid & Coolant | DOT 4 · Air-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 397 cc · 29 hp @ 7,000 rpm · 31 N·m (22.9 lb-ft) @ 5,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 790 mm (31.1 in) · 159 kg (351 lbs) |
| Fuel Tank & Est. Real-World Range | 11 L (2.9 US gal) · ~28 km/L → ~308 km (191 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 10,000 km / 20,000 km • Air Filter / Spark Plug: 18,000 km / 20,000 km • Valve Clearance Check: 24,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Honda’s answer to the SR400 using an XR400-lineage RFVC dry-sump single; 2001–2003 models were kick-start only, while 2004+ added electric start and HISS.
Oil & Clutch Mechanical Engineering Note
Honda Hyper VTEC 399cc inline-four using engine oil pressure to actuate 2-to-4-valve VTEC pins—making clean SAE 10W-30/10W-40 JASO MA oil (3.2 L w/ filter) critical.
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