All,
I checked the compression numbers on my 3 mowers, throttle wide open and decompression still functioning. All I did was remove the spark plug and pull hard several times to get these readings.
GCV 190 - 91psi
GXV 140 - 101PSI
GXV 120 - 70PSI
I installed new rings on the GXV 120 and oddly...
Well, if that is too much for you to get a proper reading so be it. I don't understand why you would have such a tone when all I was asking was a simple question about the GCV engines. Go about your day and perhaps someone else will answer my question about the GCV engine as I was asking.
No, you do not take apart the engine. On the GXV engines you simply remove the valve cover and slide the rocker arm off of the exhaust valve, pull out the push rod and then pull the rope. Look it up, google is your friend.
Does the GCV190 engine have a decompression feature on the exhaust valve as the older GXV 120 - 140 engines? If so, that would need to be deactivated to get a proper reading for compression.