Kuryakyn 9423 HYPERCHARGER for YAMAHA - Manual (Page 3)

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3
Jetting Recommendations: See FIG.1 for jet locations.
With stock exhaust or Cobra Slip-On Mufflers
• 1.2 Pilot Air Bleeds in both carbs
• One .020 shim added to raise each needle
• 122.5 Main Jet in the front cylinder’s carb
• 120 Main Jet in the rear cylinder’s carb
• Pilot Mixture Screw (PMS) 2 turns out from lightly
bottomed
With Vance & Hines, Samson, or open “Drag”
pipes
• 1.2 Pilot Air Bleeds in both carbs
• One .020 shim added to raise each needle
• 125 Main Jet in the front cylinder’s carb
• 122.5 Main Jet in the rear cylinder’s carb
• Pilot Mixture Screw (PMS) 2 turns out from lightly
bottomed
NOTES:
A) The factory installed plug covering the PMS will
have to be removed in order to access the screw.
B) Because the float bowl screws are easily damage
during removal, we have included 8 replacement
float bowl screws with socket heads, just in case
they are needed.
BE SURE TO VENT THE FLOAT BOWLS TO THE
BACK OF THE HYPERCHARGER — THIS IS
NECESSARY FOR BEST DRIVABILITY AND
MAXIMUM PERFORMANCE!!!! (See STEP 16.)
STEP 7
See PIC.4. Insert both flanges of the rubber air
duct through the opening in the mounting bracket. Place the galvanized clamp
hook on the duct clamp as shown in PIC.4A. You will need to flatten this hook on
the clamp. Place the Stock duct clamp on the new intake duct — the clamp screw
should face forward. See PIC.4B.
STEP 8 Install the mounting bracket and duct assembly using the supplied
M6 x 1.25 x 15mm socket heads and tapered socket head bolt caps. The front
mounting point will also use the step (reducer) washer and M6 flange nut. Make
sure the intake duct is in position on the air box inlet. Tighten the bracket
securely, but leave the clamp on the intake duct loose for now. See PIC.5.
PRO HYPERCHARGER
INSTALLATION
-cont.-
PIC 4
FIG 1
PIC 4A
PIC 4B
SCREW FACES FORWARD