porter
no adjustment was needed this time round
but I do advise you too get them checked
you can cause damage too the shims if there out
costly if you do... to change shims its cams out = £££££
I go really steady on mine I don't rev the nuts out of it
so depends on your riding style weather adjustment is necessary
also my air filter was really dirty this time round at 15000 miles
I changed this myself at 8000 miles.... so new filter too