Well I made a number of changes:

1) Put the baffle back
2) Installed larger ID hose (which I had got with my dubro fuel pump) between tank and engine with straps (of wire ties) on both sides to hold the tubing to the tank metal piping and engine port
3) Shortened tubing between engine and tank while still allowing connection outside the cowl to prevent flooding while sitting.
4) Made holes in the bottom of the cowl so it resembles a perforated sheet. This allows it to retain more strength than one hole

If this doesnt help, I am going to give up and be ready for the deadstick everytime I hover.

I am also looking at an OS FS91 Surpass II 4 stroke engine without pump which will be available this week locally. However I wont be using it this season. In first week June, the season will come to an end as the monsoon will flood our field for 3 months. I did want to ask however, Is this engine worth the international price?

Ameyam