Thank you for contacting Answer Army. It sounds like you may have some kind of internal issue. Is this sound creating any abnormal vibration or does the sound get louder when increasing the throttle? If so, then there may be some kind of internal issue. Without experiencing the sound then it is hard to troubleshoot. Please let us know the answers to these questions and we will get back with you.
Thanks again for using Answer Army.
Thank you for contacting Answer Army. It sounds like you may have some kind of internal issue. Is this sound creating any abnormal vibration or does the sound get louder when increasing the throttle? If so, then there may be some kind of internal issue. Without experiencing the sound then it is hard to troubleshoot. Please let us know the answers to these questions and we will get back with you.
Thanks again for using Answer Army.