hemm...if you jaga elok2....the 2a won't kaput wan....
like my 2a after full restoration, change everything from cam bearing to piston ring 100% Japan part, that was year 2003, until now not yet kaput....
always travelling with average speed of 110kmj, travelling distance 300km none stop...also still ok....
most important thing is don't wait for 5000km than only oil change...change them when its 3000-4000km. Cause we do not know sometime when we are idleing the life of the engine oil also running....
kesimpulan....won't kaput wan la....