Honda GB350C 2025 Maintenance Schedule
The 2025 Honda GB350C maintenance schedule below covers the manufacturer's recommended service intervals for general maintenance, air filter, spark plugs, valve clearance, oil, drive chain maintenance, brake fluid and tires. Intervals are shown in kilometres by default and can be switched to miles.
Sourced from Honda Motor Co., Ltd. (Owners Manual) (this document covers model years 2024–2026): 2rom-prd-data.hondamotopub.com
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Honda Diagnostic System check | Every 12,000 km | Professional | Check vehicle systems via the Honda Diagnostic System. |
| Fuel line inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect fuel line for leaks, cracks, or deterioration. |
| Throttle operation inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect throttle grip and cable for smooth operation and correct freeplay. |
| Air cleaner replacement | Every 24,000 km | Easy | Replace air cleaner element. |
| Crankcase breather cleaning | Every 12,000 km | Easy–Moderate | Clean crankcase breather. |
| Spark plug replacement | Every 12,000 km | Easy–Moderate | Replace spark plug. |
| Valve clearance inspection & adjustment | Every 6,000 km | Advanced | Inspect and adjust valve clearance. |
| Engine oil change | Every 6,000 km (first at 1,000 km) · Every 12 months | Easy | Replace engine oil. |
| Engine oil filter replacement | Every 24,000 km (first at 1,000 km) | Easy | Replace engine oil filter. |
| Engine idle speed inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect and adjust engine idle speed. |
| Evaporative emission control system inspection | Every 24,000 km | Easy–Moderate | Inspect evaporative emission control system. |
| Drive chain inspection & lubrication | Every 1,000 km | Easy | Inspect and lubricate drive chain. |
| Drive chain slider inspection | Every 12,000 km | Easy | Inspect drive chain slider for wear. |
| Brake fluid inspection & replacement | Every 12,000 km · Every 12 months · Replace every 24 months | Moderate | Inspect brake fluid level; replace brake fluid. |
| Brake pad wear inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect front and rear brake pads for wear. |
| Brake system inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect brake system (hoses, lines, and overall operation). |
| Brake light switch inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect brake light switch operation. |
| Headlight aim inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect and adjust headlight aim. |
| Clutch system inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect clutch system operation and freeplay. |
| Side stand inspection | Every 12,000 km · Every 12 months | Easy–Moderate | Inspect side stand and side stand switch operation. |
| Suspension inspection | Every 12,000 km · Every 12 months | Moderate | Inspect front and rear suspension. |
| Nuts, bolts, fasteners check | Every 12,000 km · Every 12 months | Easy–Moderate | Check and tighten nuts, bolts, and fasteners. |
| Wheel & tyre inspection | Every 12,000 km · Every 12 months | Moderate | Inspect wheels and tyres for damage and wear. |
| Steering head bearing inspection | Every 12,000 km · Every 12 months | Professional | Inspect steering head bearings for looseness or roughness. |
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Easy: basic tools, straightforward Easy–Moderate: varies by task — somewhere between the two Moderate: some mechanical know-how helps Advanced: specialized tools/skill, still DIY-doable Expert: significant experience required Professional: dealer or shop recommended
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