Yamaha Outboard Technical and Maintenance Information for You!
SOLD! $14,500 for a set of turn-key 3.3 ltr 2005 F250 and LF250 25″ shaft length freshwater engines. 834 hours. 420 hours at below 1000rpms. We recently removed these from a 2005 290 Wellcraft Coastal which we repowered with Yamaha F300’s and Yamaha’s Helm Master system. Yamaha rigging parts are available if needed. The boat […]
The largest source of trouble with marine engines these days lies with the fuel and fuel system. Paying regular attention to both can help prevent major headaches down the road. From hoses and connections to proper filtration and even fuel additives, time spent maintaining your fuel system helps keep you safe and your boat ready […]
Yamaha uses coding to signify their paint colors on different parts of their outboard motors. These paint codes are referenced in the chart below, but can often be found in the last two digits of the part number of certain items, for example a lower unit: Note the “8D” code in the part number below. […]
Many times when the HPDI Cylinder Head Side Gasket pictured below are removed for injector service, not much attention is paid to the orientation of the gaskets until the new ones need to be installed. When the injectors are removed from the cylinder head, the old injector gasket material needs to be cleaned from the […]
Yamaha recommends service intervals based on “typical” use that includes operating at varied speeds, sufficient time for the engine warm up and cool down, medium to light and average cruising speed near 3000 to 4000 rpm range. If your normal operating conditions are different, more frequent services should be considered, especially engine oil and gear […]
Yamaha uses a model coding system to signify different specifications of a motor. In the past few years they’ve revised their model code designations. Earlier model codes used the designation chart below (courtesy of Yamaha’s Outboard & Rigging Parts Guide). Note that the 2006 models don’t use a year designation as they did in 2005 […]
We receive this question many times a day. We wish it were as cut and dry as ordering the wrench listed in your service manual for your motor, but it’s not that simple. We’ve found that the caps used on motors from the factory don’t always match what is listed as the replacement on the […]
The rubber key cap snaps to fit over the end of the switch. The cover rotates with the key when starting and stopping a motor. If the rubber cap is dislodged and lost, or the cap remains on the key when the key is removed from the switch two problems can occur: Water and debris […]
E10 Fuel (better known as 10% ethanol-blended gasoline) – whether we like it or not, it is here to stay. Adding ethanol to fuel helps reduce emissions for cleaner air. Unfortunately, ethanol is also tough on many engine components, which can end up causing a strain on your wallet. Performing some simple maintenance steps can […]
Located above the water pump impeller on many two stroke and four stroke models, 115 hp~250 hp, there are two wave washers and a flat washer underneath a plastic spacer and metal retaining collar. These components minimize driveshaft movement, up and down, to quiet the knock sometimes heard at low speeds. They must be removed […]