Re: 1979 CB750K with prolems

Posted by Lucky 1 on Jan 27, 2012; 9:57pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1979-CB750K-with-problems-tp3691671p3694685.html

One thing you forgot to mention.

One very important thing.
The cylinder being tested must have both valves closed.
The engine must be in the correct position.

IF you have a pressure gauge on the hose you would see the pressure leaking down. That is why it is called a leak down test.
Just make sure the air in not leaking out of one of the fittings on the air hose, or compressor or spark plug hole fitting. Lots of ways to be leaking.