1000ds 2003. when the tank is full, under heaving breaking, the fuel cap leaks and spills fluid all over. breather tubes are not blocked. and the o-ring was changed. it's leaking from the gasket which is under the cap. it's quite hardened up. i can't find a replacement ANYWHERE. they only sell the entire capp for 300 euros. and i can't just find a gasket of the sames size because it's fused to a metal flange. what can i do?
Sorry, don't know the answer to your question. However, there's a wealth of knowledge on the earlier model Multis on multistrada.net.