Checking the oil on a Yamaha YBR 125 is essential to the maintenance of the motorcycle. Running the bike on low amounts of engine oil can be harmful to the cycle and cause the engine to break down prematurely. The motorcycle has an engine oil dipstick located on its left side of the motorcycle that you can use to check the oil level in the engine.
Allow the motorcycle to idle for five minutes before checking the oil. The oil will be thinner and show a more accurate reading of the oil level. Turn the bike off and let it sit for five additional minutes.
Ensure the bike is sitting on the kickstand. For the accurate reading, keep the bike held in an upright position so the bike is level.
Unscrew the dipstick from the top of the engine. Wipe the dipstick off with a rag. Insert the dipstick back into the engine.
Pull the dipstick back out and observe where the oil stops on the dipstick. If the oil is between the two lines or below the bottom line on the dipstick, it will require oil. If the oil stops at the top line, the level is full and no oil is needed.
Insert the dipstick back into the engine and tighten by hand to ensure it is tight.
Add oil in 1/4-qt. increments. The system holds a total of 1 qt. of engine oil. Use SAE 10W30 or SAE 10W40 Yamaha-approved motorcycle engine oil for best results.