Suzuki DF140A Owner's Manual page 42

The oil on the dipstick should be between
the upper and lower limits shown on the dip-
stick. If the oil level indication is near the
lower limit, add enough oil to raise the level
to the upper limit.
To fill the engine with oil:
1. Remove the oil filler cap.
2. Fill with recommended engine oil to the
upper level.
NOTICE
Running the engine with an excessive
amount of oil can damage the engine.
Do not overfill the engine with oil.
3. Tighten the oil filler cap securely.
42
• Check the battery solution level.
The level should be kept between the MAX
and the MIN level lines at all times. If the
level drops below the MIN level line, refer
to MAINTENANCE section.
• Make sure that the battery leads are
securely connected to the battery termi-
nals.
• Visually check the propeller to make sure
it is not damaged.
• Make sure the motor is securely mounted
to the transom.
• Check for proper operation of the Power
Trim and Tilt.
• Make sure the tilt pin is securely installed
in the proper position.
• Check for proper trim angle.
• Make sure you have the boating safety
and emergency equipment on board.
• Make sure that the emergency stop switch
operates properly.
• Make sure the obstacle is not attached to
water intake hole.