Is there any oil on the pull rope side of a 2002 polaris 400 scrambler if not what is the plug for on top of the recoil?

On a 2002 Polaris 400 Scrambler, there is typically no oil on the pull rope side, as this area is primarily for the recoil starter mechanism. The plug on top of the recoil is usually a cover for the pull start assembly, and it serves to keep debris out rather than to hold oil. If you are seeing oil in that area, it could indicate a potential issue, such as a leak from the engine.