KTM 125 SX 2007 Maintenance Schedule
The 2007 KTM 125 SX maintenance schedule below covers the manufacturer's recommended service intervals for oil, general maintenance, air filter, spark plugs, brake fluid and coolant. Intervals are shown in kilometres by default and can be switched to miles.
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Sourced from KTM Official Manuals (this document covers model years 2005–2015): azwecdnepstoragewebsiteuploads.azureedge.net
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Transmission oil change | Every 10 operating hours | Easy | Replace transmission oil (Motorex Top Speed 4T 15W/50, 0.8L capacity). |
| Hydraulic clutch fluid flush | Every 24 months · Every 45 operating hours | Moderate | Change hydraulic clutch fluid. |
| Clean and oil air filter | Every 2 operating hours | Easy | Clean foam air filter element and oil with foam filter oil. |
| Spark plug replacement | Every 15 operating hours | Easy | Replace spark plug (NGK BR9ECMV). |
| Brake fluid replacement | Every 24 months · Replace every 24 months | Moderate | Flush front and rear hydraulic brake systems. |
| Piston replacement | Every 20 operating hours | Moderate | Replace piston, ring, wrist pin, and gudgeon bearing. |
| Exhaust control valve service | Every 20 operating hours | Moderate | Clean and inspect exhaust power valve linkage and flappers. |
| Coolant replacement | Every 24 months · Every 45 operating hours · Replace every 24 months | Moderate | Flush radiator coolant. |
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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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