Hi grumpy thanks for the reply. I did say i the tab was grounded to the winding but it might be reading thru the low ohm primary coil. I am yet to find an exact print for the magnetron which includes the grounding tab and switch included. Anyway i reinstalled it and tested the spark, with the grd wire off, and this is when i got the orange spark. I have just retested the spark to frame with the kill wire active to grd and there is no spark which is good. I am still a little dubious as to how good the magnetron is but we will see.

As i said i did get it to start but i think my carby needs to be tuned correctly which why i wanted some help with it. Here are some pics of it. I am still unsure of the choke action and how it is implemeted as i have just a normal speed control level so any pics would be great.

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