Really struggling with the carb, had two shims on the needle and a 130main jet, starting was very difficult but mid and top end was spot on, took shims up, played around with pilot, got it starting straight away with no choke, but mid and top felt bogged down. Now its a non starter where I have lost the sweet spot.

Its got the 156 big bore kit running so I need a rough idea what jets are used on a 150cc lifan engine at least.