KTM Duke 125 DE 2012 Owner's Manual
![KTM Duke 125 DE 2012 Motorcycle manual cover](/images/XZNdmdOHUEMncKGDDENOitvL/thumbs/thumb175x175.webp)
Regular maintenance includes checking oil levels, cleaning the air filter, inspecting brake pads, and tightening the chain. Refer to the owner's manual for specific intervals and procedures.
It is recommended to use a high-quality 10W-40 motorcycle oil that meets or exceeds the specifications provided in the owner's manual.
Check the battery charge, ensure the kill switch is set to 'run', verify that there is fuel in the tank, and check the spark plug for fouling.
Loosen the axle nut, adjust the chain tensioner bolts equally on both sides, and tighten the axle nut while ensuring the chain has the correct slack as specified in the manual.
Stop the motorcycle in a safe area, allow the engine to cool, check the coolant level, and inspect for any leaks or blockages in the cooling system.
Remove the seat, unscrew the air filter cover, take out the old filter, replace it with a new one, and reassemble the cover and seat.
The recommended tire pressure is generally around 29 psi for the front and 32 psi for the rear tire, but you should verify this with the specifications in the owner's manual.
Check the battery connections, inspect the fuses, examine wiring for damage, and ensure all connectors are secure. Consult the wiring diagram in the service manual for further troubleshooting.
Inspect brake fluid levels and top up if necessary. Bleed the brake system to remove any air bubbles, and check for worn brake pads or leaks in the system.
Maintain proper tire pressure, regularly service the engine, avoid aggressive acceleration, and ensure the chain is properly lubricated and adjusted.