Battery Maintenance

Because boating season is almost in full swing and boats are continuously being taken out of storage, we thought it would be helpful to review the importance of battery maintenance. Caring for the electrical system is a crucial part of the boating maintenance schedule and the battery is at the heart of this system. Here […]


Why It Is Necessary To Torque Components

The flywheel key, also commonly called the Woodruff key, is used as a positioning device on the crankshaft to locate the flywheel (rotor) correctly. If the flywheel is not correctly positioned, various sensors (such as the crankshaft position sensor and pulse coil sensor) that take timing information from the flywheel will get incorrect information. The […]


Potentiometers

Most people are familiar with the use of potentiometers even if they don’t know them by name. They are a simple form of a voltage divider that can be used in a circuit to send a varying voltage signal that is a fraction of the input voltage. The throttle position sensor (TPS) is one of […]


4.2L Timing Belt Replacement

The normal timing belt replacement interval on a 4-stroke outboard is 1000 hours or five years, whichever comes first. But an engine might need a service-related procedure that requires timing belt removal before then. This article deals with the safe removal and re-installation of the timing belt. Gain access to the belt by removing the […]


Metal Gaskets

Many Yamaha motors use metal gaskets between major components, such as cylinder heads and the crankcase, as well as the crankcase-to-upper-casing exhaust guide. Most of these metal gaskets use factory-applied surface coatings and raised ribs to seal between components. There is no need to apply additional sealant when reassembling components. In fact, when additional sealant […]


Coming Soon! MyYamahaOutboards App

This spring, Yamaha will launch MyYamahaOutboards, an all new web portal and mobile app. It will give Yamaha Outboard owners an account-based view of all recorded maintenance history while providing additional notifications about upcoming key maintenance intervals. These platforms will link to Maintenance Tracking used by dealers to give Yamaha Outboard owners a personalized view […]


Yamaha 10 Pin Harness

Yes, the Yamaha wire color coding can be confusing! For people that don’t work on electrical systems regularly, this can be frustrating even when doing seemly easy service procedures. The 10-pin motor-to-boat harness connector is one of those items that can trip you up. We felt a simple color code chart and 10-pin connector layout […]