Version 41 of Google Chrome has a dedicated Settings panel through which you can customize many of the browser’s features, including the default search engine. Use the Chrome Menu button in the top-right corner of the browser to access the Settings panel.
Click the three-line “Chrome Menu” button in the top corner of any Chrome browser window.
Select “Settings” to open Chrome’s Settings panel.
Scroll down to the Search section of the Settings panel and click the “Manage Search Engines” button. When you click this button, Chrome displays a list of search engines currently set up for use in Chrome.
Hover your mouse over the search engine you want to set as your new default and then click the “Make Default” button.
Click the "Done" button to save your changes.