Kuryakyn 9425 HYPERCHARGER for YAMAHA - Manual (Page 3)

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STEP 9
Place the OEM clamp removed in STEP 2 on the end of the rubber intake duct in the
same manner it was installed on the OEM air duct.
STEP 10
Loosely install the “Z” Bracket to the rear cylinder head and the “L” bracket to the
front cylinder head using the supplied M6 x 1.0 x 30mm socket head cap screws.
See PIC.6. Their position may need to be adjusted slightly when the air cleaner is
installed so do not tighten them fully at this time.
STEP 11
Install the chrome lower support bracket as shown in PIC.7 using the OEM
hardware. If necessary, tweak the bracket upward slightly so it does not contact the
engine case.
STEP 12 Hold the Hypercharger and support bracket assembly up to the bike.
• Slip the rubber intake duct with the OEM clamp onto the carburetor.
• Loosely fasten at the top two legs of the “Y” bracket to the “Z” and “L” brackets.
Use the supplied M6 x 1.0 x 16mm Socket Head Cap Screws and the supplied
Tapered Bolt Caps as seen in PIC.8.
• Loosely fasten the lower leg of the “Y” bracket and idle speed adjuster bracket
using the supplied Tapered Bolt Cap and the M6 serrated nut with the OEM
fastener. See PIC.9. It may be necessary to slightly adjust the position of the “Z”
and “L” brackets in order to line up all mounting points.
STEP 13
Once all fasteners are in place, fully tighten the lower leg of the main mounting
bracket, the two fasteners that hold the “Z” and “L” brackets to the cylinder heads,
and the two fasteners that hold the main mounting bracket to the “Z” and “L”
brackets. Tighten the OEM clamp securing the rubber intake duct to the carburetor.
NOTE:
To tighten the “L” bracket to the front cylinder head, it may be necessary
to momentarily remove the main mounting bracket from the “L” bracket to
allow access to the M6 x 1.0 x 30mm socket head cap screw securing the
“L” bracket to the head.
STEP 14 Connect all hoses. You may need to refer to the Yamaha Road Star factory service
manual.
• The 3/8” I.D. hose is your crankcase breather hose. Insert one end of the 3/8”
barbed connector into this hose and then plug it into the large rubber nipple on
the bottom of the rubber intake duct.
• Route the vacuum line connected to the “T” fitting installed in STEP 9 to the
vacuum nipple located at the bottom of the vacuum pod on the back of the
Hypercharger.
STEP 15
Reinstall fuel tank and seat.
STEP 16
Double check the tightness of all related fasteners, check for hose
clearance and check throttle for correct operation, making sure it returns
properly, before starting bike. The butterflies should be completely open when
the bike is not running, closed and fluttering when the bike is idling and will open
momentarily then close again if the throttle is blipped with the bike in neutral.
ATTENTION! It is the installer’s responsibility to ensure that all of the fasteners
(including pre-assembled) are tightened before operation of the
motorcycle. Küryakyn will not issue a warranty on components lost due to
improper installation. Periodic maintenance may be required.
HYPERCHARGER
INSTALLATION
PIC 8
PIC 9
PIC 5
PIC 7
VACUUM TO HYPER
“T” FITTING
PIC 6
Z BRACKET L BRACKET
LOWER SUPPORT
Ride On!