twin velocity for yamaha v-star 650 9851

TWIN VELOCITY FOR YAMAHA V-STAR 650
PA R T #
INCLUDED
600160
909422
400589
401012
401161
200150
200100
609452
401163
401706
401707
401709
401162
200450
200486
200373
200426
401309
200490
200305
200281
200293
200029
309851
1
1
1
1
4
3
3
1
2
2
2
2
3
2
1
1
3
4
2
2
2
2
2
1
9851
Big Twin Velocity Air Cleaner
Mounting Kit Including:
Rubber Manifold
Mounting Bracket
M6 Aluminum Spacer
1/4”–20 X 5/8” Socket Head Cap Screw — Alloy
1/4”–20 Nylock Nut
650 V-Star Jet Kit Including:
Pilot Jet #35
Main Jet 117.5
Main Jet 120.0
Main Jet 122.5
M6 Aluminum Tapered Bolt Cap
M6 X 1.0 X 30MM Socket Head Cap Screw
M6 X 1.0 X 16MM Socket Head Cap Screw
6MM Serrated Flange Lock Nut
M6 Flat Washer - Chrome
Oval Foam Pad
5/16” Reducer Washer
5/16”–18 X 1” Button Head Cap Screw
5/16” Flat Washer — Chrome
5/16”–18 Low Crown Acorn Nut
Spacer, .312” X 1.0” X .032” Flat Washer
Instruction Sheet
NOTICE
Installation of this kit REQUIRES carb re-jetting over and above what may have already been
performed for pipe installation. This is a complex procedure and we strongly recommend
that this be performed by your dealer or a competent mechanic. If you choose to attempt
this on your own, you will need the service manual for this model as carb removal and
disassembly instructions are not provided in this literature.
The following jetting recommendations are intended as a starting point. Optimal
performance and drive-ability may require fine tuning. Adjustments may be needed for
higher altitudes. General rule of thumb is one jet size smaller for every 3000-4000 feet of
elevation.
IMPORTANT
Rejetting and tuning a motorcycle can be a complex task. Due to factors outside of our
control, KüryAkyn will not be held liable for any labor costs incurred from installation of this
kit.
COBRA/STOCK EXHAUST
Main Jet
Pilot Jet
PMS Screw
117.5
35
1-1/2 Turns Out From Bottom
V&H STYLE OR OPEN PIPES
Main Jet
Pilot Jet
PMS Screw
120
35
1-1/2 Turns Out From Bottom
-cont.9851-31MC-1203
TOOLS SUGGESTED
Service manual, Metric and Standard Allen wrench sets, Metric and Standard combination
wrenches sets, 1/4” 12 point combination wrench, Phillips and flat tip screwdrivers
P I C .1
PROCEDURE
STEP 1 Remove the stock air cleaner and components to the point shown in PIC.1.
The stock plastic airbox adapter “A” and stock mounting brackets “B” will remain in
place.
A
B
B
STEP 2 Insert both flanges of the rubber adapter through the mounting bracket as
shown in PIC.2. The hardware components used for installation are placed near their
respective mounting points:
•”A” Socket head cap screw - 30mm long, tapered bolt
PIC.2
cap, and two spacers. The spacers are placed
between the chrome, and the stock mounting
brackets.
D
D
•”B” Socket head cap screw - 15mm long , tapered
B
A
bolt cap
•”C” Socket head cap screw - 30mm long,
tapered bolt cap, two spacers (place between
chrome and stock brackets), and flange nut.
C
Stock
•”D” Mounting holes.
Intake clamp
on adapter
STEP 3 The opening in the adapter boot
must be slipped over the flange of the stock
airbox and secured with the stock clamp.
Install the mounting bracket as shown in PIC.3. Secure this assembly to the bike with
the hardware specified in the previous step.
B
PIC.3
STEP 4 Disassemble the Twin Velocity. Use 1/4” 12 point combination wrench for
the three fasteners that hold the front and rear sections of the Twin Velocity
together. Pay close attention to the location of all components to simplify reassembly.
PIC.4
STEP 5 The 5/16” button head bolts, reducer
washers, nylon washers, flat washers, and acorn
nuts will secure the air cleaner to the mounting
bracket. See PIC.4.
STEP 6 “Work” the radiused flange of the
adapter through the inlet of the air cleaner.
Using the hardware shown in the previous
step, mount the air cleaner to the mounting
bracket. See PIC.5.
PIC.5
STEP 7 See PIC.6. Push two each of the oval rubber pads into the
corresponding pockets in the air cleaner until they are flush with the back plate
— two per side. You will find 3 holes behind the radiused flange that was
previously installed through the air cleaner inlet
in Step 6. With the three 1/4”–20 Socket
PIC.6
head cap screws and nylock nuts secure the
air cleaner to the mounting bracket.
STEP 7 Reassemble the Twin Velocity
Air Cleaner.
Ride On!
PA G E
2
T W I N V E L O C I T Y F O R V- S TA R 6 5 0
I N S TA L L AT I O N