Mikuni SBN jet sizes

2kdime

New member
Running a SBN 38mm on a GX390

Considering alcohol

Does anyone know what jet sizes are preferred for such an application?

Couldn't you just go big on them and then tune via the needles?
 

2kdime

New member
Nobody?

How about a step by step of the tuning process for someone who has never had to do it before?

And ways to tell if a bigger or smaller jet is needed?

Thanks
 
Top