engine looks ok from here , just a little dark up top there is all have you had it running ? if smokey , maybe a honda might be the go , if its not then nothing really wrong with a briggs and easy to maintain . BUT if it is smoking looks like its been hot once or twice . discoloured up there but seen worse and still good to go .
looks like it has had a tidy up once before , wrong colours but still within requirements .. green n orange . decals you can get here or on ebay . paint is another story chevy orange or international red is engine but as close as you can find to a darker green for the rest of it as it is now looks like alpine green . too light BUT its a personal choice too .
any numbers on the engine cowelling will help id it close enough if it hasnt been changed . they are stamped into it just above muffler or beside it