Thanks Bigted, Bruce.

I am running the gold type fuel filter, and it is still new. I actually drained 1/2 tank of fuel using the fuel tap, so the fuel is flowing OK, however, I had the cap off while doing this.

I did remove the cap to check the level of fuel after it cut out as I suspected it was running low and splashing around as I moved the mower back and forth, so again, this may be why it starts up again with no issues.

So to summarise, I used half a tank, it started revving and then cut out. I opened the fuel cap to inspect fuel level, and then started it again, no issues, but it cut out a minute after.

I'll try your suggestions and let you know how I go.