Microprocessor-based non-contact ignition system 1135.3734 (MPBSZ) is designed to work in the electrical system of 2-cylinder carburetor engines of motorcycles "Ural" and "Dnepr" 12 volt modifications, instead of serial contact (PM302 breaker), non-contact (sensor 17.3847, switch 47.3734), inductive non-contact ignition systems BSZ 135.3734