Would like to start doing leak down tests on my engine on a regular basis. Harbor Freight sells one (http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=94190) for $39 but I read it is junk. Is there a decent leak down tester available for < $100 and from where? Also, read a post about a homemade version (http://www.650motorcycles.com/LeakDownTester.html). Any good?
