The engine can be anywhere, it just needs a starter motor hooked up to a battery to turn it over.Hi Guys,
I know a compression check is pretty easy to do but I have a few questions about the procedure.
Can a compression check be carried out with the engine "out of" the frame?
Can it be done safely with the oil drained? would that be accurate?
I would guess, but thought I would ask anyways...
I wouldn't recommend doing it without oil but it probably won't harm it. You'd expect slightly higher readings though due to the reduced drag.
You must have all the plugs removed and the throttle plates wide open for consistant measurements.