VintageVmax.com

I know it is an old question but I am replacing the original carbs by Mikuni round slide 38 mm and would like to know with what parts inside to have a safe runner.
I will not use the air box but *K & N* filters. Please any help appreciated.

I have never ran one without an air box but, I would start richer than stock.
http://www.vintagevmax.com/1986_service.htm

Carburetor- Mfr.- Type/ Size/ Qty/ ID Number Mikuni- VM38/ 38mm/ 2/ L:80N-00 R:80N-00
Main Jet/ Main Air Jet 290/ 2.5
Slow Jet/ Slow Air Jet/ Air Screw �/ �/ �
Pilot Jet/ Pilot Screw (Turns Out) 40/ �
Needle Jet/ Jet Needle- Clip Position/ Cut Away/ Air Jet Q-0/ 6DH1-4/ 3.0/ �
Power Jet/ Power Air Jet L:135 R:130/ L:1.5 R:1.4
Fuel Inlet Valve/ Float Level 1.5/ 18.1mm
Idle Speed 1500 rpm


VMX 540 K High Altitude Specifications

Standard Settings High Altitude
Idle 1500 rpm Standard
Clutch Engagement 4000 +/-200 rpm 4200 +/-200 rpm
Shift Speed 8200 +/-200 rpm Standard
Main Jet # 290 See Setting Chart
Slow / Pilot Jet # 40 Above 6000 ft: # 45
Pilot Screw 1/2 Turn Out Above 6000 ft: 1.0 turn
Jet Needle Clip Position # 3 # 3 or As Needed for Response

Lucky I am. I do have 2 80N carbs with the original air box..!! That should do at best.
Thanks for the great info.
Richard

Just curious as to what calibration if you are using 38's from polaris that do not have power jets?