Thanks for such a detailed reply Nath. It should be stickied in the Briggs motor thread!
As for the motor not turning off; I had it 'tuned' (I use that term loosely) to a point where it would idle well albeit, high but smooth, but not blowing smoke.
At full revs under load with the deck turning it was also very responsive and not blowing smoke. However it was revving very high. I was concerned that it is revving too high and I could cook the engine - even though in regards to smooth idle & responsiveness it was tick all the boxes.
Its a key turn ignition.
Im good with chainsaws & diesel engines however small 4 strokes are a bit of a grey area for me!
Thanks for all your help so far.
Jake
