Carb slide needles size.

[Mark]

Hi all.
Can someone tell me which needles I need for the vhbz carbs I have on my 350K please?
I understand there are a variety available that depending on exact size and form will change the way the carb functions but unless there are any pearls of wisdom pointing to a different set up I just want to renew the existing ones as they are a bit notched where they enter the jet.
All is standard except 43 pilot jets instead of the original 52.
While I’m here can someone explain the need for the 3 needle positions, although I imagine it falls into the same realm as the different needles in regard to carb function.
Thanks a lot.

[3potjohn]

E17 needle, clip on 2nd position should be correct.
What atomisers are you using?
The jets will also wear, they are cheap though.

[Morini Jen]

As John said, E17 needle on second position, 260D atomiser and 112 main jet.

Here are a couple of charts...

[Mark]

Hi both.
My atomiser and main jet specs are as you both suggest.
Thanks for the needle info and chart.