Hero Motocorp — complaint about a clunk sound in my engine.

Address:

232109

Dear sir my name is manish kumar singh,
I bought a hero super splendor bike last month, rc no. Is up67u2361. When i ride the bike first problem is pickup is not so good as other super splendor bike, and second main problem its clunk sound of engine, i complaint about this problem at the time of first service but the dealer ignore my problem.
Please attention my problem.
I purchase 2 super splendor bike in a week, second bike performance is good.
Mobile no [protected]
My bike dealer is rastogi auto kamalpur chandauli u. P.