The disassembly of the oil inlet which is screwed into the dynamo support can not be realized without this tool. This nut fits perfect in the recesses of the nut, which you can see when the oil cap is removed.
This tool can be used together with a 1/2 wrench.
Make sure you clean the notches out so that the key fits properly. If this doesn't work you could use our other tool (see alternative).
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