Checking the fuel pressure (Yamaha FZ1)

0

1. Check:

• Fuel pressure

a. Remove the rider and passenger seat.

Refer to «General chassis».

b. Disconnect the fuel hose (fuel tank to primary injector fuel rail) «1» from the primary injector fuel rail.

Warning! Cover fuel hose connections with a cloth when disconnecting them. Residual pressure in the fuel lines could cause fuel to spurt out when removing the hoses.

c. Connect the pressure gauge «2» and adapter «3» to the fuel hose (fuel tank to primary injector fuel rail).

Vacuum/pressure pump gauge set: 90890-06756
Pressure gauge: 90890-03153 YU-03153
Fuel pressure adapter: 90890-03176 YM-03176

d. Start the engine.

e. Measure the fuel pressure.

Fuel pressure: 324 kPa (46.1 psi) (3.24 kg/ cm²).

Faulty → Replace the fuel pump.

See this article in russian language

Article about repair motorcycles «Yamaha Fazer FZ1» (2006-2015): «Checking the fuel pressure»: https://motoinstruction.ru/en/Yamaha/Fazer/FZ1/engine/fuel/110868 <a href="https://motoinstruction.ru/en/Yamaha/Fazer/FZ1/engine/fuel/110868">Checking the fuel pressure</a> - article about repair motorcycles «Yamaha Fazer FZ1» (2006-2015) from section «Fuel system». [url=https://motoinstruction.ru/en/Yamaha/Fazer/FZ1/engine/fuel/110868]Checking the fuel pressure[/url] - article about repair motorcycles «Yamaha Fazer FZ1» (2006-2015) from section «Fuel system».