My new 2000 yamaha gp1200r suddenly stopped on my second outing (gutted) it was going along goodo and suddenly it stopped driving forwards,but the engine will still rev fine. I have removed the impellor duct & drive shaft & the splines look ok (i think?,its all new to me). How do I remove the intermediate drive shaft to check the splines in there, because this seems to be spinning at normal speed but the impellor shaft is only spinning through friction, it seem something has happend between these 2 shafts? Hope this makes sense this is my first ski so any help at all will be greatly appreciated.I also have a petrol leak somewhere, but im sure i'll find that,all i need is a match!!!!