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The Official Duncan Racing ATV Buyers Guide


YOUR GUIDE TO THE YAMAHA RAPTOR 660

 

ENGINE

S-1 Kit

BOLT-ON KIT

STAGE 1 Kit (S-1) 

#BK4-3660      $759.00

Includes: Complete Fat Boy 4 Exhaust System (with STD Muffler), Jet Kit, Pro Flow Air Cleaner Kit (Pro Flow flange, K&N, Outerwear)
To purchase the S-1 Kit click here

STAGE 2 Kit (S-2) 

#BK4-3660-VHP   $1315.00

S-2 Kit

Includes: S-1 Bolt on Kit (Complete Fat Boy 4 Exhaust System (with STD Muffler), Jet Kit, Pro Flow Air Cleaner Kit (Pro Flow flange, K&N, Outerwear), Vortex X10 CDI, DRI Graphic & Seat Cover Kit

To purchase the S-2 Kit click here

Power Gains:
15-20% gain in HP
Excellent Start Up Performance Mods. Stage 1 Power Kits are designed to work with most DRI engine kits

For a slightly more aggressive Bolt-On kit check out the DRI stage 2 S-2 HPV Bolt Kits

*Choice of Graphic and Seat cover color where applicable.

 

DRI RAPTOR NATIONAL ENGINE KITS

Engine Kit: 660cc NATIONAL Kit        
#EK-36NT-66
        $1795.00

Not available online- Please call DRI to purchase

660cc National Engine Kit'

Includes: Fat Boy 4 Complete Exhaust System, 660cc Forged JE Piston Kit (12-1 or 10.75-1 compression) head gasket, Hard faced Camshaft, HD Valve Springs w/Titanium Retainers, Shortened Bronze Guides, DR Head Porting (with guides out) and Valve Seat Cut, Instructions, DR Tech Support. *Cylinder Head is returned assembled and ready to install.


Kit may also be purchased with:

Edelbrock Carburetor and Vortex Ignition
#EK-36NT-66EK      $2950.00

Kit Options:
Camshaft Options
         X3H Grind "All Around" Power Gain. Lift .452"/.429", Duration 276/274°
         X14H Grind "Full Race/Top End" Power Gain. Lift .452"/.412", Duration 292/294°

DRI uses hard faced camshafts only for the Raptor. A hard faced camshaft is made from a stock oem core. Lobes are welded up, camshaft profile is changed, camshaft is heat treated. On a hard faced style cam.
*DRI only uses this design because it is the most reliable option for this model.
Compression: 10.75-1 or 12-1
Customer Cores Required: Customer must send in to DRI their Cylinder (optional), Head, Camshaft for modification. (Or purchase new cores)

Kit Price is plus any OEM parts.

Upgrade Options: (when purchasing kit)


DRI Big Valve Kit                              
 #DR-80061         $287.50

*Big Valve Kit includes (3) oversized Intake and (2) oversized Exhaust Valves
**If Big Valve kit is purchased before DRI does Head Port and Valve Seat Cut there is NO additional charge to install Big Valves.

Upgrade clutch system to 6-Spring system (see below).

740cc National Engine Kit


740cc NATIONAL Kit                          
 #EK-36NT-74        $2195.00

Includes: Fat Boy 4 Complete Exhaust System, 740cc Forged JE Piston Kit (12-1 compression), Big Bore Sleeve (installed & bored), head gasket, Hard faced Camshaft, HD Valve Springs w/Titanium Retainers, Shortened Bronze Guides, DR Head Porting (with guides out) and Valve Seat Cut, Instructions, DR Tech Support. *Cylinder Head is returned assembled and ready to install.

 

Kit may also be purchased with:

Edelbrock Carburetor and Vortex Ignition
#EK-36NT-74EV      $3250.00

*Center case machining is required to install the 740cc Kit.
**DRI charges $175.00 to machine center cases for 740cc sleeve if engine is disassembled and cases are sent to DRI.
***DRI also offers complete engine teardown and reassembly. Call for details

Kit Options:
      Camshafts Options- X3H Grind "All Around" Power Gain. Lift .452"/.429", Duration 276/274°
      X14H Grind "Full Race/Top End" Power Gain. Lift .452"/.412", Duration 292/294°

DRI uses hard faced camshafts only for the Raptor. A hard faced camshaft is made from a stock oem core. The lobes are welded up, the camshaft profile is changed, and the camshaft is heat treated.

*DRI only uses this design because it is the most reliable option for this model.
Compression: 12-1 (race gas only)
Customer Cores Required: Customer must send in to DRI their; Cylinder, Head, Camshaft for modification. (or purchase new cores

Kit Price is plus any OEM parts.

Upgrade Options: (when purchasing kit)


DRI Big Valve Kit                             
#DR-80061         $287.50

*Big Valve Kit includes (3) oversized Intake and (2) oversized Exhaust Valves
**If Big Valve kit is purchased before DRI does Head Port and Valve Seat Cut there is NO additional charge to install Big Valves.

Upgrade clutch system to 6-Spring system (see below)


 

INDIVIDUAL ENGINE COMPONENTS
(all items may be purchased separately)

FAT BOY 4 Complete Stainless Exhaust System
#FB4-EY3660
          $649.00
#FB4-EY3660-HQ      $699.00

To purchase the Fat Boy 4 click here

Fat Boy 4 Stainless Exhaust
Fat Boy 4 Exhaust

Optional Fat Boy 4 Accessories:
#FB4-4A250       $39.95   Turndown (bolts on w/o-ring)
#06-554              $17.95   Spark Arrestor (requires turndown)

QP-2 Quiet Tip

#FB4-QP-2   $129.95

Bolts on rear end cap of Fat Boy 4.

Lowers DB readings a minimum of 2-3 dbs.

Forestry approved when used with screen.

* Note: Some rejetting may be required.

** Available in silver only
To purchase the QP-2 Quiet Tip click here

QP 2 with screen
Fat Boy 4 with QP-2

To purchase Fat Boy 4 Accessories click here

To purchase Fat Boy 4 Replacement Parts click here

Custom Colored FAT BOY 4 Mufflers

Custom anodized color components (muffler, end cap & turndown) are at an additional cost to the base price for the Fat Boy 4 and the components (Turn down & End cap).

*Available by special order only

**Lead time can be 1-2 weeks
Fat Boy 4 mufflers are available in a Black, Red or Blue anodized finish.
Muffler bodies, rear end caps or turndowns are available colored individually or as a complete package.
*DRI cannot guarantee colored anodized mufflers will not fade over time.


Purchase Options :

FB4-A3PCO       $129.95    3-piece package; Muffler, End Cap and Turndown
FB4-A1ECO        $24.95     End Cap ONLY
FB4-A1TDO        $24.95     Turndown ONLY
FB4-A1MFO        $89.95
     Muffler ONLY

**Custom Color prices are in addition to the regular Fat Boy 4 price

Example: Raptor 660 Fat Boy 4 Complete Exhaust System-  $649.00

               Custom Colored 3-piece package                  +      $129.95

               Total cost with color option                           =      $778.95

Custom Black
Custom Blue
Custom Red
Custom Colored End Caps
Custom Colored Mufflers
Custom Colored Turndown

 

JE Forged Piston Kit

Piston Kits

Kit Includes: JE forged piston, pin, clips and rings.

Raptor 660 , 10.75-1, 100.00mm, STD       #190253              $225.00

Raptor 660, 12-1, 100.00mm, STD             #199654              $225.00

The Following Pistons Require Cylinder Bore
Raptor 660 Piston, 10.75-1, 101.00mm       #208798              $225.00
Raptor 660 Piston, 12-1, 101.00mm           #208799              $225.00

Raptor 660 Piston, 10.75,102.00mm           #189576              $225.00

Raptor 660 Piston, 12-1, 102.00mm           #201158               $225.00

The Following Pistons Require Big Bore Sleeve and Case Machining
Raptor 660 Piston, 12-1, 105.00mm            #226247              $225.00

Raptor 660 Piston, 12-1, 105.50mm            #221062              $225.00

Raptor 660 Piston, 12-1, 106.00mm           #221100               $225.00

The Following Pistons Require Special Crankshaft, Big Bore, and Machining

Raptor 660 Piston, 12-1, 105.00mm            #219566               $225.00


Big Bore Kits
740cc Kit
                          
#41-3612-121        $349.00

(forged 12-1 piston, sleeve, head gasket)

Replacement Head gasket  
 
#H1191                $40.00

*Pistons available in (3) sizes: 105.0mm, 105.50mm, 106.00mm
**DRI charges $195.00 to install 740cc sleeve, bore to piston, and surface cylinder deck.
**Center case machining is required to install the 740cc Kit.
***DRI charges $175.00 to machine center cases for 740cc sleeve if engine is disassembled and cases are sent to DRI.
****DRI also offers complete engine teardown and reassembly. Call for details

       

 

DRI HP4 Valve Train Kits

Kits include: Hard faced Camshaft, HD Valve Spring Kit, Big Valve Kit
HP4 kits are available installed with DRI Head Porting or without install. HP4 kits not installed by DRI must be installed by a trained profession with proper equipment.

Valve Train Kit w/Porting
Valve Train Kit

HP4 Valve Train Kit w/Porting              

#DR-280KP             $1295.00
HP4 Kit with Head Port, Camshaft, HD Valve Spring Kit, Big Valve Kit
*Customer must send in head to DRI for Port Modification
                                 

HP4 Valve Train Kit ONLY               

#DR-280K                  $795.00

HP4 Kit, Parts Only: Camshaft HD Valve Spring Kit, Big Valve Kit
Without Head Port

NOTE: Both HP4 kit options require customer to send DRI good useable stock cam core.

 

CAMSHAFTS

X3H Grind Camshaft           

#MC-280-X3H              $269.00

All Around Cam (All Around Cam, Lift: .452"/.429", Duration 276°/274°)

X14H Grind Camshaft           

#MC-280-X14H            $269.00

Drag Race/TT Cam (Maximum Top End Cam, Lift: .452"/.412", Duration 292°/294°)

Full Race/Top End Camshaft

DRI uses hard faced camshafts only for the Raptor. A hard faced camshaft is made from a stock oem core. The lobes are welded up, the camshaft profile is changed, and the camshaft is heat treated.
*DRI only uses this design because it is the most reliable option for this model.
Compression: 10.75-1 or 12-1
**Customer must send in stock camshafts, or pay core charge of $185.00.



DRI Big Valve Kit

#DR-80061             $287.50
*Big Valve Kit includes (3) oversized Intake and (2) oversized Exhaust Valves
**If Big Valve kit is purchased before DRI does Head Port and Valve Seat Cut there is NO additional charge to install Big Valves.
*** If DRI has previously ported head, there is a $250.00 machining charge to install big valves.


Valve Spring Kits

HD Valve Springs & Titanium Retainers       #80-80030                    $229.00

Shortened Bronze Guides Intake                   #80-80040                    $19.95 each

Exhaust                                                                 #80-80050                    $19.95 each


Edelbrock Carburetor


Edelbrock Carburetor Kits


Edelbrock Carburetor Kit
(twist)             
#EB-3154     $727.95


 

Edelbrock Carburetor Kit

Edelbrock Carburetor Kit (thumb)          
#EB-3026     $674.95



 


Vortex X10 CDI 
('01 Model)              

Vortex X10 CDI

#VT-3601     $449.00

To purchase the '01 Vortex CDI click here

 

Vortex X10 CDI ('02-'04 Model)         

#VT-3603     $449.00

To purchase the '02-'04 Vortex CDI click here



Pro Flow Air Filter Kit

Pro Flow Air Filter Kits      

#PD-206       $149.95
(Billet, A/C Flange, K&N Filter, Outerwear) 

#PD-205        $109.95

(Billet A/C Flange, Uni Foam Filter) 

To purchase the Pro Flow Air Filter Kit click here

 

 

Carrillo Connecting Rod


Carrillo Rod         $225.00

*Plus labor to install, lower end bearing pin & thrust washer.


 

 

HD Crankshaft

CRANKSHAFT SERVICES

HD Crankshaft Rebuild                                             $450.00

Includes new Carillo Rod, Pin and Bearing.

*Customer must send in stock crankshaft for modification.

New HD Crankshaft                                                    $899.00

Includes new OEM Crankshaft and Carillo Rod


Hinson Billet Clutch Basket

HINSON Billet Clutch Basket             

#H139                  $230.00

To purchase the Clutch Basket click here


HINSON 6-Spring Kit                         

#H211                   $515.00
Includes: Billet Inner Hub and Pressure Plate. Highly recommended to use Billet Clutch Basket with 6-Spring Kit.

Hinson 6-Spring Kit


DR HD Clutch Kit             

#DR-C36            $179.00
(Fiber, Steel & HD Spring Kit)

To purchase the Clutch Kit click here

HD Starter Clutch


HD Starter Clutch                                  

#LA-02-03         $199.00
*NOTE:When installing HD Starter Clutch, it may be necessary to replace OEM starter gear.

 

 

 

Yukon HD Gear Set

Yukon HD Gear Set                                  

#YK-G             $742.00
Includes every shifting surface from 2nd to 5th gear, 7 gears total.

*Will work for '02 and newer models.

**2001 model owners must upgrade main shaft.  1st gear, #2 shift fork and Reverse gear must also be upgraded. Contact DRI for more details.

 




ENGINE SERVICES

#ER-4445 Complete Engine Rebuilding (Tear down & Reassembly)                 $650.00

 #PO-5VLV-VJ   Head Port and Valve Seat Cut (includes R & R guide)            $550.00

#MS-8005  3-Angle Valve Job (5-Valve)                                                           $175.00

Cylinder Sleeve Install, Bore, Surface                                                           $195.00

#MS-5000    Flywheel Mod                                                                               $85.00

*ALL ENGINE SERVICE PRICES PLUS PARTS.

 

 


CHASSIS

Lobo II Front with Elka Shocks


LOBO II FRONT SUSPENSION KITS
#RD-LB236F       $2995.00
Includes: Lobo A-Arms, Axis or ELKA shocks, Tie Rods, CROWN Brake Lines)

Upper & Lower A-Arms come powder coated.
For chrome plated upper arms add $150.00

Lobo II Front with Axis Shocks

 





Roll Design SWINGARM                          

#RD-SW36                    $1395.00
Chain slider add           
$90.00
*Must use round housing rear carrier. Must be purchased at additional cost

Roll Design SWINGARM
Roll Design SWINGARM
Roll Design SWINGARM


Roll Design Steering Shaft


Roll Design Steering Shaft
          

#407302               $349.95

(Chrome, Cast Stainless Head)
(Standard [stock bars] or Extended [T2 M/C type bar] Length)

 


Anti-Vibe Handlebar Mount Kit

Standard 7/8"                               #4766                    $89.95
Oversized 11/8"                            #4734                    $89.95
(std 7/8 or oversized 11/8)

 

DRI Chrome Front Bumper

DR Chrome Front Bumper           

#DR-3660        $179.00  
* ON SALE
- $125.00

To purchase the Chrome Front Bumper click here



IMS Aluminum Front Bumper      

#727302           $99.95

 

"CROWN" Series Brake Lines (std or +2")
Front (std)                                    #CR-5800             $109.50
Front (+2")                                   #CR-5825             $109.50
Rear                                            #CR-5850              $39.95
Color Options: Red, Blue, Yellow, Smoke, Clear, Green 

 

ROLL ATV Foot Pegs (Cast Stainless)

Roll ATV Foot Pegs

STD Kick-Up                       
#307302-K
       $239.00


 

 

Team Industries Axle

TEAM FIRESTICKS AXLES +3
#TM-0201-2103
        $449.00
*Uses stock OEM hubs (not included)
**TEAM has discontinued axles that use their rear wheel hub.
Replace hubs are still available in limited quantities. Call for Details
*** Starting in mid ’07 TEAM has built all of their axles to use stock OEM rear wheel hubs.

 


Team Industries Rear Wheel Hubs (Yamaha)     
       

Team Industries Rear Wheel Hub

#TM-410575      $99.95


*NOTE: Team Industries uses a special axle spline for added strength. Because of this special spline TEAM axles and Rear Wheel Hubs must be used together but purchased separately



Rear Bearing Carrier  

#TM-930675      $269.00

 

Axle Nut Installed


Stainless Axle Nut                                    
#DR-AN36  
      $99.95

 

 

 

Billet Front Hubs (pr)(Hub Cap colors: silver, red, black, blue)                                

#DR-3FH6        $399.00

Billet Front Hub Cap Colors
Billet Front Hubs



 

 

 

SKIDPLATES
Chassis                                             

 #Y-213                         $39.95


Swing arm                                         

#Y-214                          $109.95


Engine                                              

#Y-212                           $64.95

 

BRAKE ROTORS
Front WAVE                                       #DF-477W                                  $130.00
Rear WAVE                                       #DR-476W                                  $130.00

 

BRAKING BRAKE PADS (sold each caliper)
Front                                                #686                                             $29.99
Rear                                                 #686                                             $29.99

 

ELKA SHOCKS

Elka Sport Shocks


Front Shocks
(for stock a-arms or other brand)        
Replacement Model
(no Reservoir, dual rate)          from $515.00
Sport Model (Piggy Back, dual rate, comp adj.)       from $715.00

Sport Model Rear Shock                                      from $745.00


AXIS SHOCKS
Front Shocks Non-Adjuster                  

#16-307             from   $850.00
Front Shocks  
#16-308             from  $1275.00
Rear    
 #20-308
           from    $750.00

 


ACCESSORIES

TAG Handlebars                                

Oversized   T2 Bars                       $94.95
Stock style  X5 Bars                       $79.95

Motion Pro
CR Throttle and Cable
(stk carb)                   
#01-520                                         $46.90
Vortex Throttle and Cable (stk carb)             

#01-521                                         $71.90    

 

Clutch Cable          call for price

 

Chain Guard

Chain Guard (Black/Blue/Red)                               
#DR-36CG
      $29.95



Billet Shifter     

#DR-36AS       $89.95

IMS 4.0 gal Tank (white, natural, black, blue)     
#12-7314         $225.00

IMS Tank - black
IMS Tank - white


Aluminum Nerf Bars 
STD                                         #DR-4850
                $189.95
Pro Pegs w/Heel Guards         #DR-5850                 
$309.95



Aluminum Rear Grab Bar                       

Aluminum Grab Bar

#GB-3660                  $69.95

 

Shock wears    $59.00 set


 


DR Billet Throttle Cover

DR Billet Throttle Cover Polished                                                        #DR-TC36                  $39.95


 

 

 

Block-Off Plate

Block-Off Plate (red, blue, silver)       

#DR-PB13                  $14.95


     

 

 

DRI/ONE Graphic-Seat Cover Kits
Blue                                        #DR-YARGS-EB        $129.95
Black                                      #DR-YARGS-BK        $129.95
White                      
               #DR-YARGS-WH        $129.95

To purchase the Graphics & Seat Cover Kits click here

      DR/ONE Graphic Seat Cover Kit

      DR/ONE Graphic Seat Cover Kit

      DR/ONE Graphic Seat Cover Kit

 

 

 


Rear Fender Decal Strips

"4-Stroke" Red                  #DR-RF-D45-R           $18.95

"4-Stroke" Blue           
      #DR-RF-D45-B           $18.95

"4-Stroke" Silver/Red        #DR-RF-D45-SR         $18.95

"4-Stroke" Silver/Blue       #DR-RF-D45-SB         $18.95

To purchase the Rear Fender Decals click here

          

   

    


DR Number Plates (3pc set)

** Please Note: These are the DECAL BACKGROUNDS and not the plastics
        

WHITE            #DR-850                          $24.95
BLACK            #DR-825                         $24.95
RED                #DR-840                          $24.95
BLUE              #DR-830                          $24.95

YELLOW         #DR-835                          $24.95

GREEN            #DR-827                          $24.95      
To purchase the Number Plates click here

Red
Black
White
Blue
Yellow
Green