A 92905 is a 9 cubic inch (148 cc), third generation design, with a vertical Pulsa-Jet carburetor and plain main bearings: all is well so far, it is one of my favourite engines with my favourite vacuum-type carburetor. However the final 5 means it has a 12 Volt electric starter only, no recoil starter. With the vertical pull starter shown in your photo it would be a 92908. With its manufacture date of 13 June 1980, it will have breaker points inside the flywheel. It should have the automatic choke, which makes it the easiest to use and sweetest running of the small Briggs engines in my opinion. Personally I prefer a snorkel air cleaner, but the foam type you have is more common.