Hey Twisted,
Tracked down some Castrol R4 to buy, but I've been told by my Yamaha dealer that you should not use any synthetic base oils until at least 12,000 km are done.
Something to do with the liners in the cylinders. Aperently if you do use a synthetic to early, sometimes your R1 may start to burn oil (1L a week). If the 12,000km have not been clocked Yamaha will not repair the problem under warrenty.
They recomended Castrol Active4 or Motul 3000 (Mineral Based Oils Only). The dealer even pointed out that the users manual also states no oils containing anti-friction modifiers are to be used, Synthetic based oils such as Castrol R4, Mobil 1, Shell Advanced and so on all contain these modifiers.
Any feedback..........Has anyone else come accross this problem before.........
