Patrick, if it is just the tickler missing that is worrying you don't worry about it if you just want to get it started, turn the fuel on and poke a bit of wire down through the hole to push the float down,then worry about it later. To check the spark, pull the plug out, put the wire close to the fins on the head and give the cap a spin with your fingers, it might be enough to throw a spark, otherwise you will need to bolt the cowl back on
