Why is my fuel pump on my Yamaha outboard not working?
Below we run through a few troubleshooting tips to help you diagnose a faulty fuel pump. Watch our Yamaha Outboard Fuel Pump Issues video above — in which we guide you through an outboard’s fuel system — to troubleshoot possible issues that may be causing fuel pump problems.
What kind of fuel pump does a Yamaha outboard use?
Watch our Yamaha Outboard Fuel Pump Issues video above — in which we guide you through an outboard’s fuel system — to troubleshoot possible issues that may be causing fuel pump problems. NOTE: Although we’re using a Yamaha 250HP motor as an example, the fuel system will be very similar on any modern outboard, regardless of brand or model.
What happens if the fuel pump isn’t working?
If the fuel pump isn’t working properly, the engine won’t either. As such, if a faulty fuel pump isn’t supplying enough fuel to the motor, the engine won’t achieve wide-open throttle (WOT) and may stall when idling.
Can a faulty fuel pump cause a boat to stall?
As such, if a faulty fuel pump isn’t supplying enough fuel to the motor, the engine won’t achieve wide-open throttle (WOT) and may stall when idling. Because the fuel pump is a self-contained unit that can’t be dismantled or serviced, you’ll need to replace it with a new fuel pump assembly.
Below we run through a few troubleshooting tips to help you diagnose a faulty fuel pump. Watch our Yamaha Outboard Fuel Pump Issues video above — in which we guide you through an outboard’s fuel system — to troubleshoot possible issues that may be causing fuel pump problems.
Watch our Yamaha Outboard Fuel Pump Issues video above — in which we guide you through an outboard’s fuel system — to troubleshoot possible issues that may be causing fuel pump problems. NOTE: Although we’re using a Yamaha 250HP motor as an example, the fuel system will be very similar on any modern outboard, regardless of brand or model.
What causes a fuel pump to stop working?
However, before buying a new fuel pump, check the pump’s electrical connections and that the pump is getting power. The problem might just be a blown fuse that needs to be swapped out. A blocked fuel filter can slow or reduce the amount of fuel reaching the engine.
As such, if a faulty fuel pump isn’t supplying enough fuel to the motor, the engine won’t achieve wide-open throttle (WOT) and may stall when idling. Because the fuel pump is a self-contained unit that can’t be dismantled or serviced, you’ll need to replace it with a new fuel pump assembly.
Where to find the fuel pump on a Yamaha?
For example, on the Yamaha 250HP LF250TXR outboard parts page, click on Fuel 1 to find the primary fuel filter; click on Fuel Injection Pump 1 to find the fuel pump; and click on Fuel Injection Pump 2 to find the secondary fuel filter. Need help finding parts for your outboard motor or boat?
Why does my Yamaha outboard not start up?
An outboard that doesn’t run smoothly, fails to deliver maximum power and struggles to idle could be experiencing fuel pump problems. If playback doesn’t begin shortly, try restarting your device.