after two days of trying anything nothing went better. All jets, idle and main I have tried, the engine still was impossible to jet properly.
Still bogging and missfireing.
Today morning, it was cold outside by 18° y decide to try a new NGK B8HS plug after I suspected it could probably be an ignition issue.
Wow!! Now it works...! But this would mean trying to jet the engine I have “killed” 2 news NGK B8HS and this was the cause engine was missfired and imposs to jet.
Ok, the third, new, NGK B8HS out and a new B9HS in. No missfireing!
Still good with 80 main jet! Needle W7 (2 notch) and 42 idle jet.
So I think the problem was all the time 2 plugs I had ruined by not being the proper ones.....
Now I can start to carburate properly ..... I hope so!
Thanks for all and still interested in any advices for the Gilardoni 65cc (edited)