How to Delete a Yahoo Avatar
Your Yahoo avatar displays on your online Yahoo profile and also when you send Yahoo instant messages. You can pick from a variety of clothing styles, accessories and hairstyles to make your avatar unique. If you no longer have use for your avatar or prefer to have a blank picture next to your profile you can delete your Yahoo avatar on the Yahoo avatars page.
Log in to your Yahoo account with your user name and password.
Navigate to "avatars.yahoo.com"
Click "Delete My Avatar." Click "Yes" when asked to confirm your choice.