Title: Yamaha Motor Company
Content:  Yamaha Motor Co., Ltd. (ヤマハ発動機株式会社) is a Japanese manufacturer of motorcycles, marine products such as boats and outboard motors, and other motorized products. The company was established in 1955 upon separation from Yamaha Corporation (however, Yamaha Corporation is still the largest private company shareholder with 9.92%, as of 2019), and is headquartered in Iwata, Shizuoka, Japan. The company conducts development, production and marketing operations through 109 consolidated subsidiaries as of 2012. Led by Genichi Kawakami, the company's founder and first president, Yamaha Motor began production of its first product, the YA-1, in 1955. The 125cc motorcycle won the 3rd Mount Fuji Ascent Race in its 
Title: Yamaha Motor Company
Content: : Sport bikes, Star Cruiser bikes, trail bikes, road racers and motocross racers ; Commuter vehicles, including scooters ; Recreational vehicles: All-terrain vehicles and snowmobiles ; Boats: Powerboats, sailboats (e.g. Yamaha 26, a sailboat produced in the 1970s), utility boats and custom boats ; Marine engines: Outboard motors, electric marine motors, marine diesel engines and stern drives ; Personal watercraft – see WaveRunner ; Electric bicycles ; Automobile engines ; Industrial-use unmanned helicopters ; Golf cars ; Power products: generators, multipurpose engines, water pumps and snow throwers ; Swimming pools, watersliders and pool-related equipment ; Intelligent machinery, including compact industrial robots ; Electric wheelchairs and wheelchair electric drive units ; Yamaha parts and accessories, apparel, cycle helmets and motor oil ; Industrial robots and surface mounters Yamaha Motor is a highly diversified company which produces products for a large number of industries and consumer market segments: 
Title: Yamaha Drums
Content:  Most of Yamaha's drums are manufactured at two different locations in Asia. Their factory in Osaka produces their high-end professional drums as well as all of their marching percussion. The research and development of new products also takes place there. Marketing is managed from the Yamaha Corp. headquarters in Hamamatsu. The factory in China produced the entry-level GigMaker kit and the intermediate-kit Stage Custom Birch. Their factory in Indonesia produces the Tour Custom and the newly introduced Rock Tour series drums. The Indonesian factory uses the same machinery and techniques in their drum shells and all of the craftsmen working there are trained by Japanese craftsmen from the Osaka site. The only difference between these two plants is that the Osaka plant uses the more exclusive woods (maple, birch and oak)
Title: Yamaha 26
Content:  The design was built by the Yamaha Motor Company in Japan starting in 1979, but it is now out of production.
Title: Yamaha Corporation
Content: Kakegawa Factory ; 1480, Ryoke, Kakegawa-shi, Shizuoka ; Toyooka Factory ; 203, Matsunokijima, Iwata-shi, Shizuoka ; Tenryu Factory ; 283, Aoyacho, Minami-ku Hamamatsu-shi, Shizuoka In Japan, the company maintains three factories for musical instrument manufacture, engine and various vehicle manufacture (motorcycles and marine products), with all factories located in Shizuoka Prefecture. 
Title: Nissan Outboard Motors
Content:  Nissan outboard motors are produced by Tohatsu Corporation of Tokyo, Japan. They are the second largest producer of outboard motors in the world and produce environmentally conscious TLDI series of two-stroke low pressure direct injection outboards that meet current United States Environmental Protection Agency regulations for the US. Mercury outboards from 30 hp and below are rebadged Tohatsus and all Nissan outboard engines in the US and Canada are Tohatsu's with a Nissan decal. Nissan Outboards sold in Japan are re-badged Hondas.
Title: Yamaha Motor Company
Content:  In 2007, Yamaha established the Philippine operations and distributes Yamaha motorcycles under the corporate name of Yamaha Motor Philippines, Inc., one of more than 20 worldwide subsidiaries operating on all continents. Yamaha purchased small engine maker Subaru Industrial Power Products from Subaru in October 2017. Subaru's engines powered lawnmowers, generators and water pumps and have since been rebranded as Yamaha.
Title: Yamaha Motor Pakistan
Content:  Yamaha Motor Pakistan is a Pakistani motorcycle assembler which is a wholly-owned subsidiary of Japanese company Yamaha Motor Company. It is based in Karachi, Pakistan.
Title: Yamaha Motor Company
Content:  The company's products include motorcycles, scooters, motorized bicycles, boats, sail boats, personal water craft, swimming pools, utility boats, fishing boats, outboard motors, 4-wheel ATVs, recreational off-road vehicles, go-kart engines, golf carts, multi-purpose engines, electrical generators, water pumps, snowmobiles, small snow throwers, automobile engines, surface mounters, intelligent machinery, industrial-use unmanned helicopters, electrical power units for wheelchairs and helmets. The company is also involved in the import and sales of various types of products, development of tourist businesses and management of leisure, recreational facilities and related services. Yamaha's motorcycle sales are the second largest in the world and Yamaha is the world leader in water vehicle sales.
Title: Yamaha Motor Company
Content:  fueled by a strong rivalry with Honda, Suzuki, Kawasaki and other Japanese manufacturers. Yamaha began competing internationally in 1956 when they entered the Catalina Grand Prix, again with the YA-1, at which they placed sixth. The YA-1 was followed by the YA-2 of 1957, another 125cc two stroke, but with significantly improved frame and suspension. The YD-1 of 1957 was a 250cc two-stroke twin cylinder motorcycle, resembling the YA-2, but with a larger and more powerful motor. A performance version of this bike, the YDS-1 housed the 250cc two-stroke twin in a double downtube cradle frame and offered the first five-speed transmission in a Japanese motorcycle. This period also saw Yamaha offer its first outboard marine engine.

Question: where are yamaha outboard motors manufactured?
Answer: Shizuoka Prefecture.