Coleman camp stoves have a long history among campers looking for efficient cooking. The company's main two-burner model, the Classic 425, operates on Coleman fuel, a trade name for white gas, a clean-burning, high-heat output liquid fuel that is also used in Coleman single-burner stoves like the 442. If your Coleman stove stops working, there are several things you can check to try to fix it. Parts are easily available from Coleman.
Instructions
1. Verify that the pump plunger is turned one turn counterclockwise and that the pump cup at the end of the plunger is lubricated. If not, oil the leather version by removing it and soaking it in Neat's Foot Oil; if yours is the neoprene version, oil it with light motor oil.
2. Check the valve. If the stove continues to burn for more than a couple of minutes after being shut off, it means the valve is not sealing. First replace the valve stem; if that doesn't fix the problem, replace the whole valve.
3. Check the fuel tank and the generator tip if the stove lights up but then goes out. The culprit is likely carbon buildup in the generator tip, or lacquer buildup in the fuel tank itself. Clean the tank by filling it with denatured alcohol and letting it sit overnight; shake the tank and then pour out the alcohol. Replace the fuel and air tube if none of the previous solutions work.
4. Empty the fuel tank and fill it with clean fuel. Then pour out the fuel and fill the tank again. This will rinse out and remove water condensation, which can cause pops in the flame.
5. Check the two holes on the manifold behind the burner if the flame on the stove burns yellow all the time. This indicates that a clog is preventing air from mixing with the liquid fuel.
Tags: fuel tank, liquid fuel, pump plunger, that pump, that pump plunger