hows it goin my names dale i brought a dna 125 2001 about 2 months ago and it ran sound for 5 days then broke down my mrs brother had a look in his spare time and got it goin again there was summit wrong where the cogs engage and i think its summit like that again.my knowledge on mechanics is limited but this bike has done my head in so much its become a bit of a hobby,passion and headache its in pieces in my shed at the moment which has also made me want to go to college to study mechanics as it will not beat me,so if any1 has any info,manuals,advice or held it would be appreciated.many thanks.