Im not familiar with this engine,but the midget series has an alloy cover also and slides ove the nut.
The nut on the brass flywheel of the midget is riveted on and cannot be removed. But once the alloy cover is slid off over the nut the points are easily accesable. This im assuming is what your looking to do. With the flywheel off see if you can gently tap the alloy cover through the flywheel cutouts and see if it moves...just gently so as not to damage anything. If the nut is over the alloy cover then dont try this,but i suspect the washer and alloy cover are a tight/interference fit over the nut (to keep it sealed from dirt and moisture) and should be able to be removed with slight force,as this is how the midgets are done and it looks very simlar to them. As I said,if the washer covering the alloy cover is fit over the nut then it can be removed,but if the nut is definately under that washer,then,im unsure...I suggest you clean around the washer with a wire brush and give it a hit with wd 40 or similar and see exactly how its placed in relation to the nut. Im almost certain both washer and cover should slide up over the nut with a gentle prise and clean/soak with WD. The fact the flywheel puller points are directly under the cover also indicates it should come of this way,and possibly the screws if used to hold the alloy plate on are also under that washer.. See how you go,but this is how I do my midgets,and also pretty much the same for timing as gizmo has explained.,Just get that top of so it can be timed then your on the home run!....
