Jmh-500

Hi all, I've got a 2010 Honda foreman 500, it's had a top end rebuild around 30hours ago, when I let off the throttle there's a rattling sound coming from inside, I've uploaded it on the video, also my 4x4 light flashes 5 times and then sometimes it flashes just twice 🤯🤯🤯 I can't upload the video for some reason, thankyou in advance