What coil are you using? Also, could you say bit more about how you're using the electronic protractor to set valve timing? Is there a remote sensor or is the whole protractor attached to a degree wheel? Thanks - Terry
The coil I am using is for motorcycle, I think it can only work in conjunction with the GY6 electronic ignition
Regarding the electronic goniometer it is composed of 2 parts, a rotation sensor and a display
I use it for camshaft timing with this procedure: I fix the protractor the protractor to the camshaft (or to the crankshaft) to indicate the TDC of each cylinder, through the spark plug hole I introduce compressed air into the cylinder with both valves closed (each cam can rotate individually on the shaft )
I rotate the cam until I hear a flow of air coming out of the intake duct,
I rotate the exhaust cam until I feel that the flow of air stops , this is the exact valve crossover point, without overlap at TDC
If I want to overlap I advance the intake valve and delay the exhaust valve. In my case I look for the regularity of the engine rather than the performance, therefore little or zero overlap.
Are you using overlap?
Coil link
https://it.aliexpress.com/item/1005...lShare&businessType=ProductDetail&platform=AE
There is an interesting series of posts about this kind of ignitions on this forum, PaulC replaced the big pick up with a Hall sensor , works well !
I bought the electronic protractor in England, if necessary I provide the link to you
Greetings and congratulations for your splendid engine, you are a reference for me, I am learning a lot from you