Pilot jet serie?

[Buffalo400]

What's the good one serie of pilot jet for 400ex? Is it the serie 21 (middle one)?

Thanks

http://img267.echo.cx/img267/3126/sanstitre8xs.jpg (http://www.imageshack.us)

[FoxMxRiders]

Hi speedy :D

[cals400ex]

21 series it is.