Excellent procedures Super08
He's trying that as we speak - I just had a long talk with him about it. He is a "younger person".
It seems it is just a difficulty getting that first prime.
At least, I hope that is all it is
The earlier ones can be a real mongrel to get that first prime. Partly because the factory was test running them and leaving them full of fuel in the carb. They have since changed that procedure.