ESG787 is a very high quality stator that replaces the OEM stator in the Yamaha FZ-1 between 2001 and 2005. ElectroSport manufactures the ESG787 stator using a high quality core and the highest grade copper wire for the windings. The reconfigured winding configuration and the high magnetic conductivity of the new stator core result in vastly improved efficiency compared to the stock Yamaha stator. Our ESG787 stator offers a flat output across the RPM range and it also runs much cooler than the stock stator, which drastically improves reliability. We install very high grade lead wires that feature heat and chafe resistant insulation and high quality rubber seals and insulation coatings make this stator a plug in replacement of the OEM unit. Like all stators manufactured by ElectroSport, this ESG787 also comes with a full one year warranty