Kia Ora all, I have a water cooled KDX 250, I would guess 94 - 96 vintage. I have been running it on pre mix because I do not trust the oil pump, the bike is a bit of a hack. The pump works & I would rather run it as intended but I have no idea how to service or calibrate it for my piece of mind. Can any body supply some info or links with diagrams so I can check it? Yes, I'm a bodger unfortunately, mechanics is not my strong point & I always need guidance, I do everything wrong the first time.... All help appreciated.