2000-2005 Yamaha F40B Outboard Service Manual, Page 118Get this manual

I_G_E_N_E_R_A_L _C E_::: GENERAL
CHECKING THE ANODES
Check: Anodes Trim tab Scales CleanOilgrease CleanExcessive wear Replace
Do not oil, grease or paint the anode, or it will not operate properly

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