Vehicle Safety, Technical Condition and Equipment
What must work
Before every ride, check brakes, tyres, lights, horn, steering and the chain or belt. A moped must have a working front and rear brake, a white front light and red rear light, a red reflector, a rear-view mirror on the left, and a clearly audible horn. Direction indicators are required where the vehicle was type-approved with them. Tyres must have legal tread depth and correct pressure; under-inflation ruins handling and fuel economy.
Rider equipment
A correctly fastened helmet is compulsory. Choose one that fits - a loose helmet can come off in a fall. Gloves, a jacket, long trousers and boots protect skin; bright or reflective clothing helps you be seen. In Bulgaria, riding without a fastened helmet is an offence and exam questions test whether an unfastened helmet counts: it does not.
Maintenance thinking
Brake fluid, tyre pressure, cable tension, and light bulbs deteriorate gradually, so faults creep up unnoticed. Check weekly and before long trips. A moped carrying a passenger needs higher tyre pressure and more braking distance; check the manual for the permitted load and whether a passenger is allowed at all on your model.
Traps
Questions mix "recommended" with "required". Reflective clothing is recommended; a helmet is required. Another trap: a vehicle that passes a technical inspection is still the rider's responsibility to keep roadworthy day to day. Also watch for questions about carrying loads - a load must not obstruct lights, steering, or the rider's view, and must be secure.
Rule of thumb
If you would not trust it at 50 km/h in the rain, fix it before you ride.