My big line from the tank to the bulb has the j1527 stamp which I searched and supposedly that is ok, but what about the small line and the bulb? The line is grey with a pinkish/purple solid line. There is no writing at all on it. This is the same line that runs everywhere under the Cowling. The motor is a 2006 Yamaha 150 four stroke. I'm not having any issues, just thinking about preventive maintenance.