1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 40Get this manual

PERIODIC MAINTENANCE 2-14
IDLE SPEED
Inspect initially after 20 hours (1 month) and every 200 hours (12 months) thereafter

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