Hello , I have a strange problem with my GS300 sport mark1. When I accelerate hard then back off quick the peddle sticks and you have to push realy hard to get it to move again. It is as though the cable is sticking but it only does it after accelerating hard. Dont know if any of you can shed any light on this? I have put some WD40 on the linkages but it doesnt seem to help. Thanks