A horse i have is a very good one in the 5f sprints but he has decided he doest like to be whipped anymore so should i sell him i have tried the orders and he came 7/8. should i sell him and hope he does anything is there a trick to sort this out maybe a visor ??

Cannot say I have had this myself, does it also have quirks in the horse stat?

In theory racing with the jockey instruction 'hands and heels' may work.

Nope no quirks just came out from nowhere first race i played and waltzed the race bye 4 lengths 2nd race came 2nd in a group 3 the after that just would not do anything o i sold him for 400K someone else's problem now

If it still wins using hands and heels - keep it.

gave it 1 more race and easy one and it finished 8/8 so sold him - just came up for sale again 1.2 Million and he is a group 2 winner