Bleeding injection.....

[ricdroc-HT]

When bleeding the injection pump on my YM226D the filter bleed screws flowed fuel fine, no bubbles. When I loosened the bolt at the pump nothing came out, no bubbles or fuel. I even took the screw completely out and still nothing. My question is if the tank is full of fuel, which it is, and this is gravitational from the fuel filter to the pump, how long should it take before the fuel comes out at the pump?

 

[Norm-HT]

You should get either air or fuel instantly.

 

[ricdroc-HT]

The engine was running fine before I pulled the filter out to check for water. Now it is not getting fuel to the pump, the line should not be blocked in that short of time should it? Would it hurt if I used the air compressor with light pressure to blow back from the pump to the filter to see if there is a blockage? If there is no blockage then what should I look for to see why the fuel is not getting to the pump?

 

[Aaron-HT]

If you have fuel going into the hose and nothing coming out of the hose - I think I would replace it. I would not blow through the pump but you can blow back through the hose.