valve

Hello Does anyone know what parts need to be serviced at which intervals for a DUKE 125? I've got a 9000 mile service due soon. I have ordered oil and an oil filter for an oil change. I have changed the air filter. I have checked the brakes and tyres. I'm not sure when to do or how to do...

So there we were, a beautiful Saturday afternoon of glorious spring sunshine; after hours of faffing getting kit on, getting the bikes fuelled and sorted and we headed off for the trails. We get to just outside the town centre and my 250 Racing goes pop and I loose all power. So we pull into a...