2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 44Get this manual

0B-18 Maintenance and Tune-Up:
Bonding Wires Inspection
Inspect bonding wires Every 50 hours (3 months)

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Battery Inspection
Inspect battery Every 50 hours (3 months)!
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• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives