We had it on ours and the main problem seems tobe the one way fuel valves on top of the gear box they come straight from the tank. the best thing to do is to take the fittings off one is 19mm and the other is 22mm take them off and clean them out. Ideally take the pipe off and blow them through with an air line.
There are 2 banjo bolts on the front side of the pump that get blocked, sometimes one of them has a mesh/ gauze filter that will need cleaning.
It has helped ours its not perfect but i still have to take the lines off completely to clean them out.
Hope this helps
Damian, March 2011