2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 115Get this manual

BATTERY INSPECTIONFUSE INSPECTION
INSP ADJ

5.Inspect: Battery terminals Dirty Clean with wire brushPoor connection CorrectNOTE: After cleaning the terminals, apply light coat of grease
6.Install: Battery 7.Connect: Battery leads

CAUTION:

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