Baron Air & Fuel_NEEDLE_JET KIT Royal Star - Manual (Page 2)

Page: 2 BA-2400RS
Jet Kit Installation for Yamaha Royal Star
b. Insert a self-tapping sheet metal screw into the drilled hole and remove the plug.
c. With air/fuel screw now accessible, use a flat blade screwdriver to turn the screw clockwise until it seats,
then carefully turn it counter-clockwise 3 turns. Refer to final step below for assistance in fine-tuning the
setting of the air/fuel adjustment screw.
CAUTION: The adjusting procedure is critical. Correct carbon monoxide settings are key to maximum
performance. Do not overlook the next step!
The adjusting procedure requires the use of carburetor sticks or a set of vacuum gauges. The carburetors
must be synchronized in order to achieve optimum performance. This procedure should be performed by a
qualified Yamaha repair technician.
Verify that the air/fuel adjustment screw has been set to a starting position as described in step above,
and that the clip has been installed as detailed previously. Check the engine at idle speed for any
popping or back firing. For best results, we recommend that the engine be adjusted on an Exhaust
Gas Analyzer (EGA) to a CO reading between 3% and 4%.
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.
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