1993 fuel lines and ethanol?

I have a 1993 johnson 200 hp(vj200sletc)the engine was rebuilt a few years ago at that time I changed all the primary fuel lines from tanks to motor.The small lines going from the fuel manifold to the carbs have never been changed.Should I change these?My thought is that the ethanol fuel we are using now will rot these lines from the inside out they don't look or feel bad on the outside. Thanks

Yep Sam go ahead and replace them, give you something to do while you are waiting for Ice out! http://www.bassboatcentral.com/smileys/cold1.gif

Thanks Fred, never really got ice this year we will be fishing soon and my golf clubs never came out of the truck very mild winter and it is supposed to be 66 degrees this thursday.