Maintenance Tips, Diagnose By Sound Te510

Hello
I have just picked up a 2009 TE510
It starts but sounds a little rough, anyone able to diagnose by sound
Links to video

running.mp4
https://1drv.ms/v/c/41cda078c49202a5/Eb6qtekpcNNGtc0RAqrMqYsBM2-_und8k_7DgulqlvZhQA?e=uCN9uw

stopped.mp4

While I download the service manual has anyone got a quick checklist for maintenance, bike hasn't been ridden for 6-12 months

Thank you, time to get my hands dirty