Jetting for 25mm Dellorto + S2 42mm Clubman

[Covboy]

Hi all

I'm going to put my Casa 42mm S2 clubman exhaust on my S2 li150 this weekend.

Carb is new Dellorto 25mm phbl
Open mouthed at present ( I can't get a rubber elbow to fit properly on the standard ( but drilled) air box - the carb mouth seems too offset compared to the standard ones)

Has anybody got a similar set up and could advise what jetting to use as a sensible starting point?

Thanks

[Covboy]

Ok no - one knows !

What would be the starting point for the same set up but with a 42mm S3 clubman?? Any ideas?

[ULC Soulagent]

Dellorto 25 phbl bs
Needle jet D26
AQ 264
Drum slide 40
Main jet 102
Idle jet 50
Choke jet 60
Float needle 200
Float 6.5

[Covboy]

Thanks !