2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 59Get this manual
Fuel systemPower unit Changing the engine oil using an oil changer
1Start the engine and warm it up2Remove the engine oil dipstick and oil filler cap 16Install the oil filler cap and dipstick, and then start the engine and warm it up for minutes7Turn the engine off, and then check the oil level and correct it if necessary
Changing the engine oil by draining it
1Start the engine and warm it up2Remove the engine oil dipstick and oil filler cap 1
3Insert the tube of the oil changer into the dipstick guide 3