Hi I a 225 GT tractor the fuel line is cracked i need to replace the line from the tank to the fuel pump.is this the result of 10% ethanol in the gas.I just started using stabil the blue to treat the fuel. How do u get at the fuel line to change it.my tractor is a hydrostatic drive. does the whole shroud under the seat have to come off to get at it.any info would be great thanks sleepy.