CRF 450 Sputtering?

2009-2010 Honda CRF 450 cutting out on acceleration or intermittently?

I encountered this problem on my bike and was ready to purchase a new fuel pump at a cost of well over $200. Fortunately I had a sharp parts guy (Thanks Jody) that asked if I had replaced the fuel filter yet. You may need to find a good parts guy that is willing to look it up, but it is available, I bought and installed it.

There is a small fuel filter inside the fuel pump that looks like it would be used to filter coffee grounds. It is very small and has a plastic connector attached to it. When I removed and disassembled my fuel pump, being very careful not to break any tabs I found my filter to be almost black in color. I tried to blow through it and it seemed to be restricted. The new one flowed air with no resistance and was white in color.

The cost of the new filter was around $18, my time and labor and it cured my cutting out during acceleration problem.

Pay attention to how the two wires in the fuel pump are connected in case you disconnect them by accident. This is easy to do but easy to put back as long as you know which order to put them.

Good luck and Happy Wrenching,

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