Here's the posting from the New Rules and Ordinances page (Myrtle Beach)
If I decide to ride my motorcycle to Myrtle Beach in May 2009, what changes will I notice?
Myrtle Beach is the same appealing destination that it’s always been, but you will be subject to several new ordinances. For example, you will need to wear an approved safety helmet and eye protection while riding your motorcycle within the city limits. Your motorcycle must have a functioning muffler and you will not be allowed to make excessive noise. At idle, motorcycles and other vehicles may be no louder than 89 decibels. You will need to present your license, registration and proof of insurance at all traffic checkpoints, which will be more common beginning in 2009. These checkpoints also may include noise measurements. For more details on our local laws, please view our list of new or changed ordinances.
NO THANK-YOU !!! :lero