**Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power Equipment. Manuals can be found at the manufacturers website.**
This video is about how to use a Harbor Freight Leak-Down Tester on a small engine. I wasn’t able to get the tester to work correctly using the instructions provided with the tester, so I made one change, and the tester seems to work correctly. The instructions say to connect the tester to the engine before you apply compressed air and adjust the regulator, but it didn’t seem to work correctly, so I applied the compressed and adjusted the regulator before connecting the tester to the engine. This correction made the difference, and I was able to use the tester to determine the condition of the engine. It would be interesting to hear about other experiences with this tester, so please leave a comment, and thanks for watching.