To change the oil on a KTM 125 SX, you can follow these general steps:
Gather the necessary tools and materials: You will need a socket wrench or Allen key set, an oil drain pan, a new oil filter, a new crush washer (if applicable), and the recommended oil for your bike (check the owner's manual for specifications).
Warm up the engine: Start the bike and let it run for a few minutes to warm up the oil. Warm oil flows more easily, allowing for better drainage.
Position the bike: Place the bike on a stand or lift so that it is stable and level. This will make it easier to access the oil drain plug and oil filter.
Locate the drain plug: The oil drain plug is typically located on the bottom of the engine. Refer to the owner's manual or consult the bike's specific documentation to identify the exact location.
Prepare the oil drain pan: Position the oil drain pan beneath the drain plug to catch the old oil when it is drained.
Remove the drain plug: Using the appropriate socket wrench or Allen key, carefully loosen and remove the drain plug. Allow the old oil to drain completely into the drain pan. Be cautious as the oil may be hot.
Remove and replace the oil filter: Locate the oil filter, which is usually located near the drain plug. Unscrew the oil filter using an oil filter wrench or by hand, being careful not to spill any oil. Dispose of the old filter and replace it with a new one, following the manufacturer's instructions.
Clean the drain plug and reinstall it: Clean the drain plug and its sealing washer (if applicable) with a clean cloth. Inspect the washer and replace it if it's damaged or worn. Reinstall the drain plug securely, but avoid overtightening.
Add new oil: Refer to the owner's manual to determine the recommended oil capacity and type for your KTM 125 SX. Slowly pour the new oil into the oil filler hole, checking the oil level with the dipstick periodically until it reaches the correct level.
Clean up: Wipe away any spilled oil and ensure that the drain plug and oil filter are properly tightened. Dispose of the old oil and filter in an environmentally friendly manner.
Remember to consult the owner's manual or contact a KTM dealership or authorized service center for detailed instructions and specifications specific to your KTM 125 SX model.