2009 Yamaha F40 Outboard Service Manual, Page 177Get this manual

Fuel injector
Removing the fuel injector
Use rag to catch any spilled gasoline when removing the fuel components1Disconnect the fuel injector coupler a2Remove the wiring harness from the holder
Checking the fuel rail
1Check the fuel railReplace if cracked or deformed2Check the fuel injectorsSee "Checking the fuel injector" (5-21)

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