my neighbours used to have a whinge(crf50s/z50s with stock exhausts), then i realised my old victa 2 stroke mower was actually louder than my bike so i'd start up the mower and leave it right next to the fence closest to their kitchen window when id have a quick burn round the back yard. After a few times of doing that they got the point. Its stupid that riding in your own yard is illegal but you can use a chainsaw all day everyday even though the chainsaw is louder and more annoying. Atleast your kids are getting out and doing something rather than sitting on their ***** watching tv/playing xbox all day