Do yourself a favour and toss it then fit a standard key ignition as was previously done
The problem is the excess of lawyers and the fake religosity of government instutions
Good honest upstanding church going people make dumb mistakes and cause injuries so lawyers sue the manufacturer rather than admitting the operator made a dumb mistake.
It is OK for criminal or godless people to do bad things because they are bad but if good people do it then it has to be stopped .
Society can not admit that most are dumb & stupid because to put it in the words of one of the greatest philosophers the USA ever produced,, Frank Zappa
"The good book says Gad made us in his own image
so if we are all dumb then God is dumb and perhaps a little ugly on the side "
Naturally that recording got banned in the USA ( Think "You are what you is " can now be bought in the USA ) but the rest of the world got to hear it .
The up shot of this is complex lockout ignitions that would do the job if the buying public would pay a reasonable price .
But they will not so residential mowers are all made to the cheapest possible price thus interlock modules that fail and keyless ignitions that prevent every one from starting the mower, including the owner .
When I get asked for buying advice now days it is go for an entry level commercial mower or pick the colour residential your partner likes because all of them are junk .
