What Did You Mean by Impeller Yamaha 2 Hp and What Is That?
The Impeller Yamaha 2 hp can only be accessed by entering the gearbox because the water pump is located above the gearbox. This will demonstrate how to take the water pump impeller out, examine it, and then replace it. If you have a service manual, use that instead of my method. If this is the first time you have accessed your impeller for some time, it's likely that you will need an impeller, wear plate, plastic cup, and metal cup, so it's cost-effective to buy a complete repair kit. Both Yamaha and Mariner water pump repair kits are readily available on various sites at a reasonable price.
Pull the lower unit assembly away from the leg and set it on your workbench after removing the two bolts that hold it to the leg (1 facing up, 1 facing down). You may need to gently lever the lower unit off as you are separating the square section. Drive out the engine, the drive shaft's tube seal, and the pipe that transfers water to the Impeller Yamaha 2 hp housing's housing seal. Avoid using excessive force; hand the engine to someone who can remove it for you if you are unable to remove the lower unit with moderate tapping, pulling, and levering.
If it's in good condition, you won't need to do as much; however, if it leaks, now is the time to fix it. If you lack the necessary skills, give it to someone who can fix the leak and replace the water pump impeller simultaneously for Impeller Yamaha 2 hp.
This manual will walk anyone, regardless of skill level, through the process of fixing the impeller in the water pump. The honda outboard water pump serves as the equivalent of a transmission in a boat engine, making it a crucial component. Since water isn't being pumped through the core when the impeller is broken, the engine will overheat. This quick and simple fix can be completed at home with a few simple tools and some free time, which will ultimately save money. Now that the majority of the bolts are 10mm, 10mm tools are a necessity. To replace the damaged impeller, you also need an impeller replacement kit. Although wearing surgical gloves is not required for sanitary reasons, this fix is very secure.
Did you notice the "tell tail," a tiny water jet that emerges from the engine's underside when it is tested in a bucket? If not, the impeller had already disappeared. On an outboard, I deem it unlikely that pieces of the impeller will have made it to the engine, but others may be able to confirm this. While cleaning the waterways is not harmful, it shouldn't be necessary if it has only ever been used in freshwater and impeller 4hp Yamaha 2a.