Question about 2003 Yamaha YZF-R1

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Fuel pump won't run

My 02 r1 is not getting any gas to the carb. The fuel pump does not come on when you turn the key on. But i by pased it switch and it does work. Why won't it run when i turn on the switch?

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  • 7 Answers

Did you check the fuel pump relay !

Posted on Jul 22, 2009

  • chris salas Apr 02, 2015

    How did you bypass the fuel relay??

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Posted on Jan 02, 2017

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1 Answer

Why, when I ran out of gas, will it not start after adding 4 gallons of gas?


Hi,if the pump is working ok,I would say that there is some kind of blockage if you undo the fuel lineat the carb or injectors get a bottle and put the end of the line you undone into the bottle then get some one to hold the frottle peddle to the floor and turn the key,then you can see if the gas is coming through,give it a good fuew turns on the key,if gas comes through then put pipe back and turn should start,if not put air line on to blow eny blockage back into the tank,make shore the pump is working before you try this,all the best,hope this was some help.

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