Charcoal Fuel Vapor Canister - EASY FIX

They say that when the charcoal fuel vapor evaporation canister, no longer works that there is no way to repair it. The way to check charcoal fuel evaporation canister is to try to blow air through it with compressed air and if no air comes out the other fitting, then it bad and needs to replaced. It looks like the main problem why a charcoal fuel evaporation canister goes bad to that the valve inside of it gets corroded and then sticks. You have to figure the charcoal fuel evaporation canister is taking gas fumes from the top of the gas tank and air that is in the gas tank will sometimes get condensation in it. This condensation gets into the charcoal fuel evaporation canister and after a while caused the valve inside of it corrode. I had to try this several times and for several days each, but spraying a lot of WD40 in the inlets on the charcoal fuel evaporation canister enabled the compressed air to open up the internal check valve and now the charcoal fuel vapor evaporation canister functions as new again.