Hello, i have a derbi gpr r 50. I just had a new autonator new battery and a top engine re-build. everything was fine and now my electric start has stopped working it may be loose wiring, but its not making any noise at all when i try to electric start it.. This is really annoying as it only has electric start and i have to keep bumping it everywhere i go, even just to put petrol in and its really quite embarressing. Please help.! thanks