Thanks Norm & JDS,
I had a go with my Milwaukee driver. No problem at all it just undid straight away. Not having to turn it and the size of the driver makes it easy to hold the bit in the Phillips slots. I have had this driver a while but I have only used it for driving screws into timber which it does very well. I did not think it would have enough grunt to undo this screw which was pretty tight but it did.. I have broken off a few coach bolts etc with it over the years so it must have a bit of go.
I had a quick look at the rest of the mower. Its not the best, no spark at all even after I reconnected the low tension wiring.. Its actually on a PT base complete with the usual rust holes in the top corners. There is a rusty adapter that's been made up. It might go and I do have a couple of coils and modules here. There is some compression not sure about crankcase compression. The start compression relief valve is no good either but its just stuck on full compression. All in all not a high priority at the moment. Be better to sell the parts if these starters are worth that much.
All the best
Jeff
