All quantom engines have a paper air filter-if you are standing at the handle the filter will be on the front right corner(your primer should be in that area as well).there will be a cover there with one screw in it.All you need is a regular screwdriver to remove the screw,pull the cover down and there will be your air filter-there are a couple different sizes so take the old one with you to make sure you get the proper one.
Bob Runser, April 2007
