I have a Syncrowave 250 which dosen't have a preflow timer on it. After looking on the web and a call to my dealer, I found out that the preflow timer kit (part. no. 042 144) is no longer sold.

Does anyone know where this kit can be found or how to make one?
I found the parts list online but I'm missing info on the time itself:
http://igor.chudov.com/manuals/Miller/Miller-Syncrowave-250-Preflow-Timer-Kit-Manual.pdf

T
hanks for your help