Hi Rollo, it is just a bog stock Briggs, haven't come across one with a drive out the side but obviously Briggs made them. Doesn't look like it has a fuel tank on it? Firstly see if it runs, remove the belt just to be safe.It was fitted with an engine brake but that has been removed, the kill switch wire is still hanging there on the right hand side.Once you have refitted the fuel tank, open the throttle a little bit, just move the lever on top of the carby, and give it 3 primes on the primer, look in the top of the carby to make sure it is squirting fuel in, then you should be able to start it (hopefully), Before you do this make sure it has oil in it, sometimes they have been run dry and if this is the case it usually not worth the effort of getting it running
