Recent content by Kenif

Popping exhausts on the over-run can also be a burnt exhaust valve or by an exhaust leak - sucking air into the exhaust and igniting unburnt fuel. On a motor bike I would use a lambda sensor - to test for correct fuel air ratio OR do a "plug chop" - run the engine 'till its hot with a used spark...

I recently came up on this with a 1940's B31 motorcycle I'm rebuilding. Try: https://www.aliexpress.com/item/32234642130.html?spm=a2g0s.9042311.0.0.27424c4dJ0M7nE They also do coils and triggers. The unit has adjustable advance mapping using a laptop or a mobile phone with optional blue tooth...