Pull the plug reinsert into the ignition plug switch your ignition on and off, if it sparks as you turn the ignition on and off and not when you rotate the prop the timing pickup is bad.
If you get no spark either way then the ignition is bad or you have a battery/switch problem. The 3W ignition will work as good as the DA ignition you just have to match the plugs
on the timing pickup. Hope this helps.
Ralph