Hi all I have a 79 Fantic 156cc and the front forks stay locked in place when under weight. They do return but never back to the start position sticking badly, any solutions? Also my front brake drum as a nasty 3/4 inch gouge in the centre of the drum about 1/4 inch deep again any solutions on a repair? Last one is the clutch lever pin showing signs of gearbox oil leaking past it, suggestions on a cure please.