no it's not true that the Raider150/125 has self-adjusting valves, that is a lot of bullchit, refer to your manual about valve clearance & you'll find info about it.
just take care of the bike don't rev it too hard regularly or you'll be seeing a mechanic very soon for a clearance adjustment, the usual cause of valves going out of spec is valve seat wear or valve stretch & both are caused by repeated high rpm running.
i have adjusted the valve clearance on a lot of Raiders so whoever said it's self adjusting is lieing to you.









