2005 rtv900w stalls going down hill

[ttfo]

I just serviced my rtv900w. oil, filter, air filters, fuel filters. I also installed a fuel shutoff right before the fuel filter. when I first purchased the rtv in 2005 i replaced the standard fuel filter with (pic). Now when I go down hills, it stalls(sputters). runs fine level or up hill. idles fine. just going down hills.
Any Ideas?
Thanks.

 

[jaxs]

It seems you suspect something you did with fuel system is causing this so we will concentrate on that. That filter looks oversize for this application, you may need to take extra steps to get air out. Have you tried purging air from system after filter was changed? Inlet and outlet are marked on filter, are they reversed? Did installation instructions say which side is up and down? If not, try flipping filter temporarily. Unless filter is downstream from pump, you may have to add a low pressure pump between tank and filter to minimize effect of air bubbles. Speaking of bubbles, have you inspected fuel flow to make certain pump isn't introducing bubbles into fuel where they become trapped in filter? A pinhole on suction side could cause that.

 

[Bee-Positive]

Could there be debris in the tank that may side towards the inlet when going down hill?
Just a thought.