Chainsaw Repair

i can say dont use the tygon from hong kong agape jelly or something was the seller... it does not shrink up but its breaking at thegrommet hole or where it goes into the tank allowing junk to get pulled into carb ..... causing the screen to get clogged this happened with in 3 or 4 months ... stuff is trash...i used oregon from mowers4u and it shrunk up and got hard.....never just broke though....looking forward to hear what others are using and how it compares,,,,,,