Walt, thanks for the reply
I agree there are many terms for the same things which adds even more complexity. I referred to the throttle body as flap connection from reading the PET.
I’ve added some pics of the auxiliary air regulator and PET diagram. Thanks for the tip on how to test it. I will test using the freezer tomorrow.
The cold start valve which I guess is the warm up valve in the PET has 2 fuel lines to the K-jet head and 2 vacuum hoses but I can’t see how fuel would transfer to the auxiliary air regulator?
A tip on how to test the warm up valve off the engine would also be great
So where the air flow hose meets the throttle body (red) there were signs of fuel. Directly above the throttle body there is damage to the air box. Could that be causing fuel to back through hose#63 and the through #46 and into the AAR being the lowest point?
Thanks Dom