Don’t you wonder why that is ?? Not coz it’s a common problem and they’re all bolloxed is it ..... No I don't think so , if they are described as in good working order then I am fully protected by eBay,s returns policy anyway. Might not come to that, it could just be a bent selector fork . And failing that I've still got a good gearbox in my other engine . If I can sort this issue out I've got all winter to carry on working on this spare engine. I fancy a rebore and new pistons and maybe new valve springs . Meanwhile the bike is still rideable , its just got a lot of vibration due to the very slack primary chain . Why did Kawasaki favour primary chains anyway ? Everything is close enough together to be gear driven so it doesn't make a lot of sense to me . ( you not off to this rally then ? ) Did consider going to the rally but step son is just out of hospital following a major op, Missus is a nervous wreck and I need to be on hand in case he needs her or needs a lift anywhere - was in A&E with him for 5 hours last Sunday as his catheter got blocked and started bleeding