I found there was a leak from the needle valve. It was coming out from under the screw in bit. Upon inspection there epwas no o ring but also I couldn't see a ridge where one would sit. So I cut some silicone tubing which compresses when it's set about right. Ill try and find a manual and check if there should be an o ring on an Irvine 40. It's an old Irvine as I've had it over 15 years and was second hand when I bought it.

I got it running and it runs great with loads of power.

These upside down engines are a nightmare though. When I fill it I have to close off the needle valve totally to stop flooding. Not ideal. Otherwise the cylinder totally floods preventing you from turning the prop at all.

I need to get used t a way if working with it. The fact it's a low wing also means its hard to see when the tank is full. I always end up getting fuel in the muffler. I guess I should take the pipe off the muffler but its all a lot of messing about if you ask me.

it was all however worth it as my first ever flight with a low wing was wonderful.

ill update my diary with a report but first my girlfriend is demanding one of my foot rubs. Back shortly.