no luck as yet,tried these two sites,but nothing,and to add more confusion,it seems the U.S spec 555's have quite afew diferences,some U.S models dont even hav a cab,only a roll cage.
Anyway,I have found that there is deffinatley a part of the hand lever linkage missing,the linkage comes through the firewall from the dashboard,down (behind the fuel tank) to the linkage that pivots on the gearbox,here the hand linkage rod connects to a ball socket,and from the other end,via another ball socket and rod to the fuel pump.part of this linkage is missing on mine as theres only one ball socket,possibly this is that part that links up the foot throttle(gas pedal) also.This was never connected as far as i can remember when i got the 555,so I have no idea what the part looks like.If i can get it hooked up with fabricating my own brackets and have it working on the hand throttle for now ,ill be happy.