Baron Air & Fuel_NEEDLE_JET KIT Road Star User Manual
Baron For motorcycles
Page: 1
BA-2420RD
NEEDLE/JET KIT - Yamaha Road Star (99-07)
CAUTION: We strongly recommend that a qualified Yamaha technician
install this kit since the carburetor must be removed from the motorcycle.
Always perform internal carburetor work in a clean area.
Revision: 6.6 - 02/12/2010
Install Time: 90 Minutes
INCLUDED IN THE KIT:
(4) Mikuni Main Jets
(1) Adjustable Titanium Needle
(2) "e" Clips
(4) Cap-Head Allen Screws
(1) 5/32" Drill Bit
(1) Sheet Metal Screw
INSTRUCTIONS:
IMPORTANT: Extra jets have been included in your kit. These will help you fine-tune the carburetor for
changing conditions. These conditions include climate and weather patterns in your area as well as exhaust
equipment on your motorcycle. Changes in weather, altitude or modifications to your exhaust system may
require jets other than those supplied.
JET SELECTION:
99~03 Models
167.5 Stock pipes - 170 pipes w/ baffles - 172.5 pipes w/o baffles
04~07 Models
170 Stock pipes - 172.5 pipes w/ baffles - 175 pipes w/o baffles
To install this needle and jet kit:
1. Remove the vacuum slide from the carburetor.
2. Remove the OEM needle, spacer and washers, noting order of assembly.
3. Counting from the top to the bottom, install the new Baron needle clip on groove #4 for 04-07 models and on groove #5 for
99-03 models of the replacement.
NOTE: Baron adjustable needle - The top is the blunt end of the needle.
4. Reinstall the OEM spacer and washers as shown in this diagram.
5. Reinstall the vacuum slide along with the diaphragm spring.
6. Reattach the diaphragm cover back and tighten screws.
NOTE: Verify that the slide maintains its full range of movement.
7. Drain the fuel from the float bowl and remove the bowl cover.
8. Remove the OEM main jet and replace it with a Barons genuine Mikuni main jet. Install the correct main jet as indicated in
JET SELECTION area above on this page.
Our install guides provide a basic outline on the proper installation of our products. Further tuning and/or
fitment may be required. Barons bears no responsibility on installation costs associated with this product.
© 2013 Barons Custom Accessories
5221 Oceanus Drive
Huntington Beach, CA 92649
(925)583-2499 - Ph.
(714)901-0520 - Fax
www.baronscustom.com