Exactly BT, if after clearing the crank of fuel, then using the starter fluid and if you don't get a hint of starting forget it. Problem is we have no history on this motor, is it a new found treasure possibly been run on straight petrol, or was it running 6 months ago and now won't start. One thing that does confuse me with them is the 20 motors I have sitting here that have compression but even then will not give a flutter with starter fluid. One day I will sort them out.