I've always just used a big flat screw driver and you can feel the flat on the nut with the screw driver Norm.
I was just wondering if possibly the v belt and blade setup on these mowers slows down the starting speed
when you pull the starter cord making kick back worse than normal so you may need more weight
on the crank with a 24. Not really sure without trying the 460 motor on a 24.
Cheers
Max.
