Cars Q&A

Dear Sir, I have bought YAMAHA FZ16 recently. While riding the bike for 40-50kms, my left hand arm is paining very badly at bisafe. I have consulted to mechanic and he has adjusted some screw near handle but still problem persists. I have shown it to 2-3 mechanics. Everyone did the same thing but no one is able to solve the problem. Can you help me in identifying the root cause of the problem? What may be the possible reasons to such pain? How do I check wheather I am riding in right position? Pls help.