Magnetic coil mounting nut spacing:41mm/1.61";magnetic coil diameter:88mm/3.46";Trigger mounting diameter:35mm/1.37".. Replacement for 4 Stroke 49cc 50cc 80cc 125cc 150cc ATV 152QMB GY6 motorcycle scooter moped go kart dune.. Works for engine starter and power generation for battery.Easy installation,stronger power,stronger high pressure,more stable spark,and sensitive throttle.. High level of laminate and copper winding,designed to produce optimal output power.High hardness,rust-proof,anti-corrosion,not easy to deform,durable and practical..
