I have an 18" craftsman model 358356070. I purchased it about 25 years ago, this spring the gas lines were complitly dry rot and I could not figure out were they would go.
I used a similar 2 cycle engine as a guide and connected the chain saw lines following the similar patern:
The first line connects to the back of the block under the motor's piston, it goes into a sloted hole into the plastic housing were the carburator is mounted and it ends there with a "breether, brass element at the end.
the second line connected to the back hole into the tank, is connected to the fuel filter into the tank, feed the new line into the top hole and go out the bottom feed hole at the tank, also mark the new line at the point were goes out of the tank for proper sizing when you pull back the line/filter into the tank. The other end is connected to the bottom back feeder of the carburator.
The third line goes into the front hole of the gas tank and again out of the filler hole, the end is plugged in with a green/white plug that when in place into the line, you will have to pull back and plug the tank hole. The other end is connected to the carburator's top feed end.
M S, July 2008