Richard, just went and looked in the box and opened the plastic bag the valve was in, yes you are right it is a check valve not a filter, Now why cannt YS get their manual correct in this day and age?, it says in the parts supplied in box, 1 filter. never mind, and I went and brought another check valve.
What size prop would you erecommend for the TF P40? It will not be installed for another couple of months but will bench run it when it gets warm enough to stick my head out of the house.
Any particular recommendations on fuel type? 20 - 30% nitro fuel is pretty impossible to get over here and costs an absolute fortune , about £30 a gallon in my model shop if they have it in, I will shop around and try to find something soon .
Thanks for the help.