1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 28Get this manual
PERIODIC MAINTENANCE 2-2
MAINTENANCE AND TUNE-UP PROCEDURES
This section describes the servicing procedures for each of the periodic maintenance requirements
ENGINE OILENGINE OIL FILTER
ENGINE OIL LEVEL CHECK
Inspect oil level before every use(1) Place the outboard motor upright on level surface(2) Remove the motor cover(3) Remove the oil level dipstick and wipe it clean(4) Insert it fully into the dipstick hole, then remove it to check oil level2