Yamaha Outboard Technical and Maintenance Information for You!
SOLD!! Like New 2018 F225XB 46 Freshwater hours. 25″ shaft length, standard rotation. $18,500. Yamaha factory warranty until 09-2024. Engine was removed from a 23ft Hewescraft. Customer is repowering with twin F150’s and Helm Master EX Level 4 system. Below are pictures of the engine, videos of it running underway, videos of the cylinder leak […]
Flywheel covers serve multiple purposes; they direct airflow to cool components mounted on the motor and prevent objects from getting into the flywheel, timing belt, and gears, which could cause significant damage when the motor is running. Most importantly, they are there to prevent injury to users who have removed the top cowling while the […]
Adjusting the Throttle Friction on controls is something that is unfortunately often overlooked by both boat owners and servicing technicians. Either too much friction or too little can make operation of the boat unsafe. Taking a few moments to check and adjust the throttle friction will help ensure that your boating season is both safe […]
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 are some things to keep in mind and tips you can pass along to your customers to help keep them from having hassles on the water. It’s usually pretty easy […]
How do I flush my motor? This is so common I can answer it in my sleep. We often get asked “how to” and “how often” to flush your engine. Yamaha has made this procedure about as easy as it can be by including a flushing attachment on the motor. You don’t even need to […]
Injector Gaskets, Where Are You? You just finished installing reconditioned injectors on a HPDI VZ225TLR. You were letting the engine idle while checking fuel pressure and noticed a sound coming from the engine. It sounds like a compression leak near the cylinder heads. You don’t see any indication it is the head gaskets and don’t […]
Removing HPDI fuel injectors from the cylinder heads can be a struggle, particularly in saltwater applications. Corrosion can build up between the injector and the pocket in the cylinder head. To block corrosion build-up and ease future removal, apply a light coat of Yamaha WR#2 waterproof grease (pn 90790-74046-00) to the metal injector body when […]
When troubleshooting a cooling system issue or optimizing motor jack plate height, one of the first things to do is check cooling water pressure. Ideally, all boats would have a water pressure gauge installed, but we all know that’s not reality. Unfortunately, even installing a water pressure gauge temporarily if the boat doesn’t have one […]
There are a few places on our motors where hex drive fasteners are used, typically on upper casing aprons and water intake screens. A thread sealant is applied to the apron fasteners to prevent salt and mineral build up from making the screws impossible to remove. While minimizing the effects of salt, the sealant can […]
Yamaha offers a popular line of four-cylinder four-stroke outboards that are used in a wide range of single and twin installation applications, in both fresh and saltwater, all over the world. From pontoons to center consoles, bass boats to work skiffs and even water taxis, they are great performers and real workhorses. The most popular […]