Throttle Extension
In this instance the throttle arm on the OS 200 Surpass had no clear path to trace a throttle cable so an extension was created to move the arm clear of the engine mount.
There is a 3.1mm hole through the centre of the unit to accept the M3 bolt for fastening, at the carburettor end it was milled out 6.5mm to produce a flat bottom hole to accept the OS throttle body, then at the end that accepts the throttle arm the shank was turned down so it fitted the metal arm and a small flat was milled so the grub screw could locate and fasten the arm to the extension.