How to Troubleshoot an IMPCO Propane Vaporizer

Check the propane tank hooked up to the vaporizer to verify you have an adequate supply of propane. The vaporizer motor can be potentially damaged if it runs with an empty propane tank. Check that the valve is open as well so that the system receives gas.

Inspect the system for signs of leaking. If you smell a strong smell of gas or hear a hissing sound, close the propane valve and exit the area until a professional inspection happens. Examine the vaporizer for cracks or signs of corrosion. The system may not be delivering the appropriate amount of propane because it is leaking out in transit.

Run the motor if no symptoms of leaking exist and push in the primer button. If the system is functioning properly, the motor should come close to stalling as the RPMs drop. Let the plunger pop out and the motor should return to operation. Adjust the air/fuel mixture if pushing the primer causes the engine activity to increase. Use a screwdriver to turn the screw on the vaporizer's mixer.

Replace the air filter. This often corrects performance problems if the filter is dirty or clogged.

Perform a pressure test by hooking up a pressure gauge to the vaporizer. IMPCO recommends that the primary pressure run at 1.5 to 3.5 psig.

Request professional maintenance if the system problems persist.