Honda NX500 Owner’s Manual Summary (Engine Oil & Maintenance)

1. Engine Oil Specifications

• Recommended Oil Type: Pro Honda GN4 4-stroke oil (or equivalent motorcycle engine oil)
• API Classification: SJ or higher (Note: Exclude oils labeled as “Energy Conserving” on the circular API label, as they can cause clutch slippage)
• JASO Standard: JASO T 903 standard MA
• Viscosity Grade: SAE 10W-30 (Standard factory recommendation)

2. Engine Oil Capacities & Hardware Codes (Honda NX500 / CB500XA)

• Oil Change Only (without filter replacement): * 2.4 Liters
• Oil and Filter Change (with filter replacement): * 2.6 Liters
• Total Disassembly Capacity: * 3.1 Liters
• Oil Filter Part Code: 15410-MFJ-D02 (or equivalent aftermarket such as Putoline HF204)
• Oil Drain Plug Bolt 12X15 Part Code: 90131-883-000
• Drain Plug Washer 12mm (Crush Washer): Part Code 94109-12000

3. Maintenance Intervals

• Initial Oil & Filter Change: At 1,000 km or 1 month (whichever comes first).
• Regular Maintenance Schedule: * Engine Oil Replacement: Every 12,000 km or 1 year.
  • Oil Filter Replacement: Every 24,000 km or 2 years (Note: Many service providers choose to replace the filter at every oil change as best practice).
  • Drive Chain Check & Lubrication: Every 1,000 km.

4. Proper Oil Level Check Procedure

1. Start the engine and let it idle for 3 to 5 minutes.
2. Stop the engine and wait 2 to 3 minutes for the oil to settle.
3. Hold the motorcycle upright on level ground.
4. Check the oil level through the crankcase inspection window:
   • The oil level should sit comfortably between the upper and lower level marks.
   • If it is low, remove the oil filler cap and top up using the recommended oil up to the upper mark. Do not overfill.

5. Drive Chain Slack

• Target Chain Slack: 30 – 40 mm
• Measurement Method: Measured vertically at the lower run midway between the sprockets, with the motorcycle on its side stand, transmission in neutral, and no weight on it.

6. General Motorcycle Overview (Honda NX500)

• Engine Type: Liquid-cooled, 4-stroke, DOHC Parallel Twin, 8-valves
• Displacement: 471 cc
• Fuel System: PGM-FI (Programmed Fuel Injection)
• Clutch Type: Wet, multi-plate with Assist & Slipper Clutch
• Transmission: 6-speed constant mesh
• Fuel Tank Capacity: 17.5 Liters

7. Official Documentation Sources

• Honda NX500 Owner’s Manual
• Honda NX500 Parts Catalogue

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