Dear concern, I have Hero Honda Karizma R 2007 model... As, it is my f

Dear concern,
I have Hero Honda Karizma R 2007 model... As, it is my first crush, I decided to keep it till my last breath... My bike heated up while long run as well as city ride and start to detonate heavily... I had K&N on carburetor's mouth... So, what will be the problem, even some months before I serviced it with good expenditure of 4500 rupees....

Need help or advice? Ask your question and get help from experts