I do not know the answer to this. When we spoke on the phone I explained that the ignition comes with its own pickup which can be screwed to an appropriate mounting.

I hope I did not mislead you. The ignition I sent is a generic twin cylinder ignition with its own pickup. I thought I explained that.

If you cannot make it work send it back, I will be happy to refund your money. I don't have a 3w engine to test it with. You'll need to do some adapting of the pickup, or possibly use the 3w pickup with it.

Just do not modify the igtnition if you want to return it.

TF