Yamaha YP20T, YP40T Owner's Manual

Pages 40

Year 2014

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Yamaha YP20T, YP40T Specification

The Yamaha YP20T and YP40T are robust, high-performance water pumps designed for a range of industrial and agricultural applications. Both models are engineered to deliver superior efficiency and reliability, making them ideal for tasks such as irrigation, drainage, and dewatering.

The YP20T features a 2-inch suction and discharge port with a maximum delivery volume of up to 172 gallons per minute. This model is powered by a durable, air-cooled, 4-stroke gasoline engine that ensures consistent performance even under demanding conditions. The pump's construction includes a robust aluminum alloy for the volute and impeller, enhancing its longevity and resistance to corrosion.

The YP40T, on the other hand, is equipped with a 4-inch suction and discharge port, capable of delivering up to 356 gallons per minute. Similar to the YP20T, it is powered by a reliable 4-stroke gasoline engine. The YP40T is designed with a focus on heavy-duty performance, featuring a rugged frame that provides excellent protection and stability.

Both models incorporate a self-priming design with a built-in check valve, facilitating quick and easy startup. The pumps are also equipped with an oil-alert system that automatically shuts down the engine when oil levels are too low, preventing damage and ensuring long-term reliability. Additionally, the compact and portable design, combined with ergonomic handles, allows for easy transport and deployment in various environments. The Yamaha YP20T and YP40T water pumps embody a blend of power, durability, and user-friendly features, making them a preferred choice for professionals seeking dependable water management solutions.

Yamaha YP20T, YP40T F.A.Q.

How do I start the Yamaha YP20T/YP40T water pump?

To start the Yamaha YP20T/YP40T, ensure the fuel valve is open and the choke is set. Pull the recoil starter firmly until the engine starts. Adjust the choke as necessary once the engine is running smoothly.

What should I do if the pump does not prime?

Check that the suction hose and strainer are not clogged or damaged. Make sure all connections are airtight and the pump casing is filled with water before starting.

How often should I change the oil in my Yamaha water pump?

Change the oil after the first 20 hours of operation, then every 50 hours or once a season afterwards. Use SAE 10W-30 oil for best results.

What maintenance is required for the air filter?

Check the air filter every 25 hours of operation. Clean with soapy water and let it dry completely before reinstalling. Replace if the filter is damaged or excessively dirty.

How do I winterize my Yamaha YP20T/YP40T?

Drain the fuel tank and carburetor. Remove and clean the spark plug, then add a teaspoon of oil into the cylinder and pull the starter cord to distribute the oil. Store in a dry place.

What can cause the engine to overheat?

Ensure that the pump is not running dry and that the cooling fins are clean and unobstructed. Check the oil level and make sure the pump is not overloaded.

How do I troubleshoot if the engine won't start?

Check the fuel level, ensure the fuel valve is open, and verify the spark plug is clean and properly connected. Make sure the engine switch is in the ON position and the choke is correctly set.

What type of fuel is recommended for the Yamaha YP20T/YP40T?

Use unleaded gasoline with a minimum octane rating of 86. Avoid using gasoline containing more than 10% ethanol to prevent damage to the engine.

How do I clean the fuel system?

Periodically drain and clean the fuel tank. Check and clean the fuel filter, and inspect the fuel lines for cracks or damage. Use a fuel stabilizer to prevent deposits.

What should I do if the pump is vibrating excessively?

Check for any loose mounting bolts or hardware. Ensure the pump is on a stable and level surface. Inspect the impeller and bearings for damage or wear.