Crank angle detecting system for a two-cycle engine

摘要

A crank angle detecting system for a two-cycle engine has a first detecting disk secured to a crankshaft and having a plurality of first projections, a second detecting disk secured to the crankshaft and having three projections, a first pickup for detecting the first projections and a second pickup for sensing the second projections. The second projections are disposed such that pulses produced by the second projections for a cylinder of the engine are generated at a timing different from the other cylinders of the engine.