If oiling the clutch was a real issue, it would happen to everyone. Lucky for us, it's not an issue at all with gen4 and 5 (and likely older gens too). I ran my gen4 for 10k miles on the track and never had this problem. The problem is probably with the transmission. I would say a bent shift fork. Luckily, Kawi was kind enough to make cassette-style gearboxes for our bikes so it's pretty easy and quick to remove it and replacing a shift fork takes 30 seconds. Just check the service manual on the step-by-step and don't rush it.
Last edited by Lanister; 06-18-2018 at 12:04 PM.