Hi, i had a scorpa sy250 crank Rebalanced here, there main Business is villiers engine rebuilding for karts give them a go! think the chaps called simon
Nametab Engineering, Villiers 210 Kart racing and engineering, Industrial unit in Redditch 01527-522266. Unit 18 Bartleet Road, Washford, Redditch B98 0DG
Hope this helps! rij