Yamaha Waverunner Engine
The Yamaha Waverunner engine is a reliable marine engine. Yamaha's first Waverunner engine was the 500cc but was soon replaced by the popular 650cc reed Waverunner engine. Since then, They have came out with a couple of different waverunner engines. The 701, 1200, 1300 Waverunner motor where 2 stroke. Most of the newer Waverunner models come with the Yamaha 4-stroke HO Waverunner motor.
If your Waverunner engine breaks down and needs to be rebuilt. Or you need Yamaha pistons and crankshaft? there are companies who do engine rebuilds such as Inland Jet @ Jetskiengines.com They rebuild engines with performance parts and also sell new and used engines, Short Block for Wave Runner.