How to Change the Oil on a Yamaha 225hp Four-Stroke Boat Motor?

Answer The only oil you ever have to change on the four-stroke Yamaha 225 hp four-stroke is the oil in the gear case. The motor uses an oil-injection system to mix the oil into the gasoline precisely. The... Read More »

Top Q&A For: How to Change the Oil on a Yamaha 225hp Four-St...

How to Start the Battery for a Yamaha 150 Four Stroke?

The battery on a Yamaha 150 is located on the inside of the left rear quarter panel just in front of the air intake box. The bike will not be completely charged when you take it away from the showr... Read More »

How to Winterize a Four-stroke Boat Engine?

Whether a four-stroke outboard, or a four-stroke inboard-outboard with a stern drive, all boat motors have needs at the end of the boating season. The process is called "winterization." Prepping yo... Read More »

How to Troubleshoot a Yamaha 4-Stroke Outboard Motor?

Yamaha offers consumers great variety with its four-stroke outboard motor lineup. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Each had unique... Read More »

How fast will a 115 HP Yamaha boat motor go?

While the horsepower rating of a boat's engine is a large factor in how fast it will travel, it is hardly the only one. In order to properly estimate the speed of a boat, a great deal more informat... Read More »