Problem might have been caused by the angle it was tilted at, oil may have drained into areas it shouldn’t. How long have you let it stand without attempting to run it? It might be worth checking oil levels. Not starting could be lack of fuel as you say you are not getting any sign of fuel at tickler. Remove fuel pipe at carb and see if you get fuel flowing with tap on. Next step if you do have fuel flow at end of pipe is to strip carb. Another thought, is engine petrol/ paraffin? If so is fuel change over tap set correctly?