Naturefalls Stainless Steel Starter Motor 12V 9-Tooth CW Rotation Fits Yamaha YZF R1 2004-2008

This starter motor is a direct replacement component for Yamaha YZF R1 motorcycles from 2004 through 2008. Constructed with a durable stainless steel housing, it ensures reliable performance and resistance to corrosion in engine bay environments. The unit operates on 12 volts with clockwise rotation and features a 9-tooth pinion gear for precise engagement with the engine flywheel. Specifications include a compact form factor of approximately 7.5 inches in length, 3.9 inches in width, and 3.1 inches in height, with a weight of 2.87 pounds. The package dimensions are 19.0 cm in length, 10.0 cm in width, and 8.0 cm in height, with a total shipping weight of 1300 grams. This starter motor corresponds to OEM part numbers 4C8-81890-00-00 and 4C8-81890-01-00 for guaranteed fitment. Installation is straightforward, requiring basic mechanical tools and skills, and restores starting function to the motorcycle engine. Always consult the vehicle service manual for proper installation procedures and torque specifications. The unit is intended for indoor use only as part of the motorcycle's electrical starting system.