my hoover logic 1200 A3630 still wont spin on the fast cycle!?

Hi all again,
My above mentioned hoover washer still won't fast spin eventhough I've fitted brand new motor bushes! I have checked all the spade connectors around the motor and they are all fine and connected, what happens is when I fit the motor brushes is that it full spins once then returns to the no high spin state afterwards. (Thanks to Aa for the previous advice!)
I'm at my wits end!
Arrgggg :(
Ta v much for any light you can shead on this problem!
grumpy Evo :(