Power Valve: Testing and Inspection

Power Valve Test





1. Disconnect the # 14 vacuum hose from the power valve and connect a vacuum pump to the valve. Apply vacuum and listen for a clicking noise from the power valve.
- If a clicking sound is heard, go on to step 2.
- If no sound is heard, replace the carburetor and retest.
2. Start the engine and wait for it to warm up.





3. Disconnect the # 14 vacuum hose from the power valve and connect a vacuum gauge to the hose. Check that there is vacuum at idling.
- If there is no vacuum, check the vacuum hose for disconnection, tears and clogging.