Looking at the owners manual there is nothing I can find on the fuel filter replacement etc. Doing a search in the YZ section it looks as though its a non-replaceable type? From what I have seen so far Honda has a replaceable type every 30hrs or so and KTM has an in-line type. Does Yamaha just expect these filters to last forever or do they expect the owner to replace the whole pump etc every so many hours? Little in the dark on this because I don't see it really spelled out in the manual on when to check/replace? What kind of maintenance is everyone doing to this system?