We'll I have to blame someone and I like to go straight to the top . I pulled the pump and tank off now which is what I should have done last week. And there was a bit left in the tank, not much but there must be a dead leg in the tank where a small amount of oil sits and doesn't drain out when you just pull the hose off but when ridden works its way into the line and then the pump. I won't need a catch tank as all items to do with the pump are coming off, my bike is for the track only at this stage.I had actually ran the bike around the car park a few times to make sure all the oil left in the pump was out and nothing was left pumping out before I went to the track.