Honda Trail 125 (CT125) 2021 Maintenance Schedule
The 2021 Honda Trail 125 (CT125) maintenance schedule below covers the manufacturer's recommended service intervals for oil, general maintenance, air filter, spark plugs, valve clearance, drive chain maintenance, brake fluid and tires. Intervals are shown in kilometres by default and can be switched to miles.
Sourced from Honda New Zealand (hondamotopub BWH) (Owners Manual) (this document covers model years 2021–2026): 2rom-prd-data.hondamotopub.com
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Engine oil change | Every 4,000 mi (first at 600 mi) · Every 12 months | Easy | Replace engine oil. |
| Brake pad wear inspection | Every 4,000 mi | Easy–Moderate | Inspect front and rear brake pads for wear. |
| Brake system inspection | Every 4,000 mi | Easy–Moderate | Inspect overall brake system (lines, master cylinder, calipers). |
| Brake light switch inspection | Every 4,000 mi | Easy | Inspect brake light switch operation. |
| Headlight aim inspection | Every 4,000 mi | Easy | Check and adjust headlight aim. |
| Air cleaner replacement | Every 12,000 mi | Easy | Replace air cleaner element. |
| Crankcase breather cleaning | Every 4,000 mi | Easy | Clean crankcase breather tube. |
| Spark plug inspection & replacement | Every 4,000 mi · Replace every 8,000 mi | Easy–Moderate | Inspect spark plug; replace at longer interval. |
| Valve clearance inspection | Every 4,000 mi | Advanced | Inspect and adjust valve clearance. |
| Engine oil filter replacement | Every 8,000 mi | Easy | Replace engine oil filter. |
| Engine oil strainer screen cleaning | Every 8,000 mi | Professional | Clean engine oil strainer screen. |
| Engine oil centrifugal filter cleaning | Every 8,000 mi | Professional | Clean engine oil centrifugal filter. |
| Engine idle speed inspection | Every 4,000 mi | Easy–Moderate | Inspect and adjust engine idle speed. |
| Evaporative emission control system inspection | Every 12,000 mi | Easy–Moderate | Inspect evaporative emission control system. |
| Drive chain inspection & lubrication | Every 300 mi | Easy | Inspect drive chain slack and lubricate. |
| Brake fluid inspection & replacement | Every 4,000 mi · Every 24 months · Replace every 24 months | Moderate | Inspect brake fluid level; replace at longer interval. |
| Clutch system inspection | Every 4,000 mi (first at 600 mi) | Easy–Moderate | Inspect clutch system operation. |
| Side stand inspection | Every 4,000 mi | Easy | Inspect side stand spring and operation. |
| Suspension inspection | Every 4,000 mi | Moderate | Inspect front and rear suspension operation. |
| Spark arrester cleaning | Every 4,000 mi | Easy | Clean spark arrester. |
| Nuts, bolts, fasteners check | Every 8,000 mi | Easy–Moderate | Check tightness of major nuts, bolts, and fasteners. |
| Wheel & tire inspection | Every 4,000 mi | Professional | Inspect wheels and tires for damage, wear, and correct air pressure. |
| Steering head bearing inspection | Every 8,000 mi | Professional | Inspect steering head bearing adjustment and play. |
| Fuel line inspection | Every 4,000 mi | Easy–Moderate | Inspect fuel line for deterioration, damage, or leakage. |
| Throttle operation inspection | Every 4,000 mi | Easy–Moderate | Inspect throttle grip freeplay and operation. |
No maintenance items match your search.
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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