powdery white stuff...
Did you replace them with OEM? I want to replace only the 2 small hoses that go in the thermostat. I have a small leak in the those, so instead of just tighten the clips I am thinking to replace them. As you say, these ones are getting a lot of heat.. Instead of going OEM, i am thinking getting general purpose radiator hose (silicone) and cut it into 2 pieces. They seem pretty straight, no curve. Do you happen to know the internal diameter of the hoses? While I am there, maybe I replace the hose clips, with quality made SS clips.I have 336000kms on mine, and the hoses are original, except the thermostat hoses....one swelled up and burst about 15000kms ago.....i would say thy are at most risk because of the heat that
is directed from the block. You remove the throttle bodies to get to them.....not difficult, but make sure the engine is hot when taking the throttle bodies off as the inlet flange rubbers wll be softer
and more compliant. The white powder, might be the detergent you are using to wash the bike with ?