Motorcycle Repair: kfx400 egine, oil smoke, throtle

Question
people were telling me that my timing chain was loose but i called the said it adjust on its on but now it starting to smoke when i hit the throtle but does not smoke idling  

Answer
is it oil smoke are is it ,like fuel smoke,if it fuel smoke you might want to adjust yur carbs , if its oil smoke you could have bad oilrings,chk yur plug if its wet with oil you have an oil problem if its dry then your fuel is the problem need to adjust carbok.let me know how it goes ok.p.s please leave feedback for me ok.

mitch