1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 71Get this manual
C_g POWER UNIT
Engine oil level 1Check: Engine oil level Above -7 Check for diluted engine oil and any water leaksBelow ) -7 Add engine oil so that the level is between and )
Engine oil replacement 1Remove: Engine oil filler cap CD Engine oil drain bolt 2Remove:
0 filter cartridge Oil
Oil filter wrench: YU-3841190890-01426