WebJul 23, 2024 · 2. Engine issues. While trying to know about common Yamaha 425 outboard motor problems, you may find some about the engine. The engine will have the problem of starting or running. The inadequate fuel levels in the gas tank can be one of the reasons. So, check the level and refuel with unleaded gasoline with an octane rating of 86 or higher. WebPage 48: Warming Up Engine Check the oil EMU27764 level and add oil if necessary. Consult Forward (tiller handle and remote your Yamaha dealer if the cause for the control models) low oil pressure warning indicator can- …
How Much Oil Does a Yamaha Outboard Take? [Chart]
Web115 / 90 / 75 hp 70 / 60 / 50 hp 40 / 30 hp; 25 - 2.5 hp. 25 / 20 / 15 hp 9.9 / 8 hp 6 / 4 / 2.5 hp; ... Yamaha outboards are manufactured to provide you with years of enjoyment. But high load, high-RPM operation, extreme temperatures and humidity, saltwater, sun, even long periods of non-use can all exact a heavy toll. ... Engine Oil Capacity ... WebMar 29, 2024 · A. This is referred to as “Making oil”. Here it is in a nutshell. Water vapor enters the crankcase of all motors from the atmosphere, and as a by-product of combustion. In other motors, the oil gets rather hot and any water vapor that may condense will steam-off and exit the crankcase breather. 4-stroke outboard motor oil doesn’t get ... trevor toombs
2 stroke oil coming from carburetor (lots of it) - Yamaha …
http://maintenance.yamahaoutboards.com/ WebJun 6, 2024 · Inspect the oil pump. There is a link rod connecting the oil pump to a lever located on the carbs. The link rod moves the lever back and forth, allowing oil to enter fuel system. The oil pump at rest might be stuck "open", thus allowing oil to consistently flow, even while the engine is off. tenet of the church of pentecost