Pilot screw setting

[Tim L]

I have just put a pair of 34's on my XS2.
The pilot screw position is supposed to be preset in the factory but it looks like these have been tweaked.
Does anyone know the position they should be set to.

 

[5twins]

The mix screw was preset but to meet pollution standards, not for best running, so you wouldn't want it at the original setting anyway. Somewhere between 3 and 3 1/2 turns out seems to work best on the BS34s. If you do mods and re-jet, in particular install a larger pilot jet, then the best setting may be slightly less.