any bike enthuiasts on here!

[gazterrano]

just wondered if 1 or 2 knew about bikes on here as ive recently bought one, just a trail bike that ive fancied but not many around a yamaha tw125 4 stroke , the guy said it has been stripped new piston rebuilt but he says he doesnt trust the cam chain ajuster saying its a crap idea automatic ajustment that doesnt work i always thought that was the best one but after revving the bike i find a chain rustle sound after shutting off & im begining to wonder if the old chain worn out was fitted or more like the guy didnt have a clue as he kept saying its bad idea how the spring fits that ajusts the chain , ive got little faith in this guy now & not run the engine since gotta find someone who knows more feel more happy having it stripped checked again possibly with new chain + ajuster does this sound wise thing to do