2000-2005 Yamaha F40B Outboard Service Manual, Page 100Get this manual

I CONTROL SYSTEMPOWER UNIT
Shift into neutral and make sure the starter can be pulledIf it cannot be pulled, repeat the above procedure
POWER UNIT
CHECKING THE ENGINE OIL LEVEL
Check: Engine oil level

-4 Check for fuel in the engine oilBelow 7 Add engine oil so that the level is between and Above

REPLACING THE ENGINE OIL AND OIL FILTER

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives