Honda CBR125 Cuts Out When Put In Gear, How To Repair

Honda CBR 125 cuts out when put in gear Riding down the road when the bike just cut out for no apparent reason. It would restart in neutral, everytime it was put into gear it would just cut out. Traced the fault and how to repair, hope this video helps somebody thanks for watching Link to parts and tools used in video, https://www.amazon.co.uk/shop/aaanton11