Have you got a manual/handbook for it? why do you think it needs brake fluid? do the brakes feel different? normally a small glass window in the side or the body itself is transparent to check the brake fluid level in the reservoir which is on the right handlebar next to where the brake lever is bolted, think yours is rectangular with a sight glass at the front. Might be a label with fluid info.on the cap, DOT4 or 3 brake fluid if you need to top up by carefully removing the reservoir cap(two screws) and top up to the upper level mark. Its worth putting a rag around the res. to stop spills, brake fluid will strip paintwork.
Ted
May 2011