Briggs&stratton membrane?

Here are some pictures that may help, but if you go to the Briggs & Stratton web site and enter your mowers model number, you may be able to download a repair manual. a href="http://www.lawn-mower-shop.com/carb2.htm" rel="nofollow"http://www.lawn-mower-shop.com/carb2.htm/a Good Luck