Which jets and needle position with 50mm BBK?

[scootnewb]

Hi All,


I threw on a 'performance' exhaust and have a hi-flow air filter. The 18mm Keihin arrived yesterday and I'll be installing the 50mm jug and piston Sunday (stock head).

I wondered what the best sized jets and needle position would be to go with the mods. I'm at sea level.

Thanks