Why my bike’s engine makes unusual sound?
my bike makes more unusual sound ftom engine..ot irritate the rider a lot.jpw to avoid it??
There may be many possible reasons for unusual engine sound, we cannot say anything for sure without examination, some reasons like: low engine oil level, spark plug might be fault, carbon built-up in the combustion chamber, poor fuel quality, IC igniter problem etc.; we advise you to take your bike to your local Yamaha service center for proper solution.