Carburation

 
Tokyomods Carb Mod Order From
Tokyomods Accelerator Pump Spring
Tokyomods Smog Removal & Carb Performance Kit
Tokyomods Carb Performance Kit
Tokyomods Carburetor Sump
Tokyomods Hot Start Nut
Tokyomods Fuel Screw
Tokyomods Carburetor Accessory Kit
Tokyomods Carb Mod
Tokyomods Carb Rebuild Service
Tokyomods New Modified Carb
Athena Dual Spray Venturi Kit
Tokyomods Carb Vent Hose Kit
Tokyomods Fuel Line
Tokyomods O-Ring Kit
Tokyomods Carb Screw Replacement Kit
Keihin Replacement Parts
Keihin Jets
Tokyomods Less Tension Throttle Spring
Tokyomods EFI Less Tension Throttle Body Spring
Tokyomods FCR-MX Accelerator Pump Spring

The new Tokyomods FCR carburetor accelerator pump spring will increase throttle response and horsepower on all Bikes and quads using an FCR carburetor. This new spring will also alleviate the stubborn bogging problems common with many FCR carbureted Bikes and ATVs. The new Tokyomods spring is designed for the maximum fuel squirt and the optimal squirt duration. Other aftermarket springs are far too stiff; much like wiring your accelerator pump together it shortens the squirt duration and in some cases it can also lead to severe accelerator pump binding problems.
Price: $19.95
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Tokyomods CRF-X Smog Removal & Carburetor Performance Kit
 
Price: $149.95
Model
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Tokyomods CRF-X Carburetor Performance Kit
 
Price: $99.95
Model
Tokyomods Carburetor Sump
The Tokyomods Carburetor Sump is the first of is kind to be introduced to the MX market. The Sump keeps all fuel contaminates including water away from the main jet. It helps control fuel slosh and bogging. The Sump won't get distorted from over tightening and it is easy to reach for quicker jetting changes. Great addition to the Tokyomods Carburetor Mod. New O-Ring is included. 
4 STROKE APPLICATIONS:
ALL KEIHIN FCR CARBURETORS 
Honda CRF150R, CRF250R/X, CRF450R/X.
Suzuki RMZ250, RMZ450.
Kawasaki KX250F, KX450F.
Yamaha YZ250F, YZ450F.
KTM 250/450/505/530.
 
2 STROKE APPLICATIONS:
ALL KEIHIN PJ, PWM, PE, & PWK CARBURETORS
Price: $24.95
Color
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Tokyomods Billet Hot Start Nut
Replace the fragile stock hot start nut on your carburetorwith the Tokyomods Billet Hot Start Nut. Precision machined from 6061 aluminum and anodized for durability. Great addition to the Tokyomods Carburetor Mod. O-Ring is included.
Price: $24.95
Color
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Tokyomods Billet Fuel Screw

The Tokyomods Billet Fuel Mixture Screw will allow you to easily adjust the fuel mixture on your Keihin FCR carburetor. Precision machined from 6061 aluminum with a dual O-Ring to keep it in place under hi vibration situations. Great addition to the Tokyomods Carburetor Mod.

Price: $24.95
Color
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Tokyomods Carburetor Accessory Kit
The Tokyomods Carburetor Accessory kit includes: Tokyomods Billet Hot Start Nut, Tokyomods Fuel Screw, Tokyomods Sump.
Price: $59.95
Color
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Tokyomods Carburetor Mods

Tokyomods is the originator of four stroke carburetor modifications .The Tokyomods Carb Mod will dramatically improve the performance of your four stroke motocross or off-road machine. We start by completely disassembling and cleaning your entire carburetor, along with inspecting and replacing all damaged or worn parts. The process continues with modifying and installing the Tokyomods jetting specs together with any accessories that the customer requests. Lastly, every unit is bench tested before it’s packaged and shipped out to the customer. The majority of carburetors that Tokyomods modifies have some sort of other pre existing problem; this is why we won’t just sell a "jet kit", Jet kits alone are not enough to keep today’s complex carburetors performing at their best.
Click Here for Carb Mod Info/Shipping Form
PRICE $249.95
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Tokyomods Carburetor Rebuild Service
Just like engines, today's carburetors are becoming more complicated and require rebuilding. Tokyomods rebuild service will take your already modified carburetor and bring it back to 100%. If you have already modified your carb this service should be done once a year.
Rebuild Service $229.95 (slide plate not included)
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Tokyomods Complete Modified Carburetor
Tokyomods Complete NEW Moodified Carburetors
Tokyomods is the originator of four stroke carburetor modifications . A new Tokyomods modified carburetor will give you the same performance  as sending your carburetor in without the down time. The Tokyomods Carb Mod will dramatically improve the performance of your four stroke motocross or off-road machine. We start with a new carburetor for your model selected,  clean the entire carburetor to confirm perfection The process continues with modifying and installing the Tokyomods jetting specs together with carburetor accessory kit and yellow vent line. Lastly, every unit is bench tested before it’s packaged and shipped out.
Complete Carb Prices
Year
Carb w/ Mod PRICE
Honda
CRF150R 2007-2013  $         774.95
CRF250R 2004-2009  $         829.95
CRF450R 2002-2008  $         874.95
CRF250X 2004-2013  $         829.95
CRF450X 2005-2013  $         894.95
TRX450R 2004-2005  $         979.95
TRX450R 2006-2013  $         868.95
Yamaha
YZ250F 2006-2013  $      834.95
YZ450F 2006-2009  $      1,399.95
WR250F 2007-2013  $      1,319.95
WR450F 2007-2011  $      1,344.95
YFZ450 2006-2008  $       1,064.95
Kawasaki
KX250F 2006-2009  $         799.95
KX450F 2006-2008  $         919.95
Suzuki
RMZ250 2006-2009  $       1,259.95
RMZ450 2005-2007  $       1,269.95
KTM
250SXF 2007-2008  $       1,159.95
450SXF 2007-2008  $       1,324.95
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Athena DUAL SPRAY VENTURI JET

The Athena Dual Spray Venturi Jet is now available from Tokyomods. This kit includes the dual spray venturi jet, leak jets, FCR-MX and center section o-ring.
$99.95
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Tokyomods Carb Vent Hose Kit
Replace your worn out cracked carb vent hose with a Tokyomods Carb Vent Hose Kit. Kit includes pre cut hose for Keihin FCR MX carburetor. Top quality hose that won't crack, swell, shrink, or harden like stock hose.
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Tokyomods TYGON Fuel Line

Replace your stock fuel line with Tokyomods TYGON Fuel line. Our hi quality fuel line wont crack, swell, shrink, or harden like stock hose. Available in 1’ & 20' lengths, in yellow or black.
Color / Size
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R&D Racing Float Bowl
The R&D Racing float bowl is a great addition to the Tokyomods carb mod. The bowl works with all FCR carburetors, and allows for easy adjustment of the accelerator pump leak circuit via external thumb screw. The bowl also features a redesigned check valve and repositioned air bleed off circuit not allowing fuel to become as aerated in the carb bowl. Tokyomods recommends this product for the serious racer looking for that extra advantage over the competition. The Tokyomods Carb Mods combined with the R&D Power Bowl will produce phenomenal results.
Tokyomods Carb Mod with R&D Float Bowl $429.90
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Tokyomods FCR-MX Carburetor O-Ring Kit

The Tokyomods Keihin FCR-MX Carburetor O-Ring Kit includes all the necessary o-rings and seals to rebuild your carburetor. The kit includes: top cover o-ring, fuel joint o-ring, float bowl o-ring, float bowl drain o-ring, accelerator pump u-ring, accelerator pump o-ring, diaphragm, valve seat o-ring, fuel screw o-ring, slide plate o-ring, TPS o-ring. 

4 STROKE APPLICATIONS:
ALL KEIHIN FCR CARBURETORS 
Honda CRF150R, CRF250R/X, CRF450R/X.
Suzuki RMZ250, RMZ450.
Kawasaki KX250F, KX450F.
Yamaha YZ250F, YZ450F.
KTM 250/450/505/530
Tokyomods Carb Screw Replacement Kit

Replace the worn out stripped screws on your Keihin FCR carburetor with our complete kit. The CRF, KXF & RMZ kit includes Phillips float bowl and accelerator pump screws, and Allen carb top screws. The YZF & KTM kit includes all Allen screws.
Price $9.95
Model
FCR-MX Parts Diagram. Click on the diagram for a larger view
Keihin replacement parts available from Tokyomods.
No. Description Part No.  Retail 
5 Top Cover KMX-710  $        27.22
6 Top Cover Gasket KMX-711  $          5.30
7 Screw M4 X M12 KMX-700  $          4.41
8 Screw M4 X M8 KMX-10  $          4.08
10 Bracket KMX-712  $        19.51
11 Screw KMX-713  $          0.56
14 Coil Spring KMX-718  $          3.75
15 Washer KMX-18  $          0.56
16 Link Arm KMX-721  $        42.48
18 Stop Screw KMX-723  $          1.25
19 Throttle Valve KMX-320  $       181.85
20 Roller KMX-27  $          7.17
21 Vacuum Release Plate KMX-725  $       104.21
22 Seal KMX-726  $       16.98
24 Jet Needle Clip KMX-616  $          0.78
25 Needle Set Screw KMX-727  $          8.80
26 Main Nozzle KMX-728  $        15.20
32 Pilot Screw KMX-729  $          7.77
33 Pilot Screw Coil Spring KMX-41  $          2.43
34 Pilot Screw O-Ring KMX-43  $          0.66
35 Pilot Screw Washer KMX-45  $          0.56
37 Valve Seat O-Ring KMX-47  $          1.38
38 Valve Seat Screw KMX-250  $          0.93
39 Float KMX-202  $        14.99
40 Arm Pin KMX-670  $          1.82
42 Float Valve KMX-504  $        15.55
43 Float Valve Clip KMX-674  $          3.03
44 Fuel Screen KMX-730  $        11.16
45 Float Bowl Packing KMX-731  $        10.34
46 Drain Screw KMX-733  $          2.08
47 Accelerator Pump Cover KMX-57  $        19.30
49 Float Bowl KMX-734  $       164.33
51 Diaphragm KMX-735  $        18.39
52 U-Ring KMX-67  $          0.93
53 Accelerator Pump Coil Spring KMX-69  $          1.10
54 Accelerator Pump O-Ring KMX-71  $          0.93
55 Cold Starter Valve KMX-737  $        34.27
64 Link Lever KMX-739  $        11.06
65 Link Lever KMX-740  $          3.37
66 Coil Spring #1 KMX-719  $          4.33
67 Coil Spring #2 KMX-717  $          2.28
69 Washer KMX-741  $          0.66
70 E-Clip KMX-742  $          1.00
72 Rod KMX-743  $          7.77
83 Fuel Joint KMX-744  $        30.67
85 Fuel Joint O-Ring KMX-755  $          7.37
90 Step Screw KMX-745  $        24.51
91 Stop Screw Washer KMX-101  $          0.66
92 Stop Screw Coil Spring KMX-103  $          1.93
96 Throttle Position Sensor KMX-746  $       138.52
100 Screw KMX-105  $          1.60
109 Collar KMX-747  $          3.50
122 O-Ring KMX-664  $          0.71
123 Drain Bolt KMX-128  $          5.51
140 Screw KMX-749  $          2.12
148 Vent Hose KMX-751  $        29.44
152 Hose Clip KMX-98  $          0.56
177 Stop Screw KMX-722  $          9.35
180 O-Ring KMX-732  $          0.87
199 Washer KMX-753  $          0.56
205 Hose Retainer KMX-505  $          4.36
206 Vent Hose KMX-750  $          8.39
207 Vent Hose KMX-752  $          1.63
209 Buffer Plate KMX-754  $          5.38
211 Diaphragm KMX-736  $        10.21
212 Cover KMX-755  $          7.37
213 Coil Spring KMX-715  $          1.25
241 Screw (Torx) KMX-757  $          0.65
243 Coil Spring KMX-716  $          1.25
244 Collar KMX-748  $          3.12
245 Hot Starter Valve KMX-738  $        34.27
249 Washer KMX-758  $          0.65
250 Stop Screw KMX-724  $          0.87
251 Coil Spring KMX-720  $          0.87
264 Cover KMX-756  $          2.08
265 Cover Screw KMX-759  $          4.13
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Keihin Jets
Keihin jets for FCR-MX carburetors available from Tokyomods.
Keihin Main Jets
Keihin Pilot Jets
Kehin Leak Jets
Size
  
Size
Size
80
35
35
82
38
38
85
40
40
88
42
42
90
45
45
92
48
48
95
50
50
98
52
52
100
55
55
102
58
58
105
60
60
108
62
62
110
65
65
112
68
68
115
70
70
118
72
72
120
75
75
122
78
78
125
80
80
128
 
82
130
 
85
132
 
88
135
 
90
138
 
92
140
 
95
142
 
98
145
 
100
148
 
102
150
 
105
152
 
108
155
 
110
158
 
112
160
 
115
162
 
118
165
120
168
122
170
125
172
128
175
130
178
132
180
135
182
138
185
140
188
 
190
195
200
205
210
215
220
230
 
Jet Prices:
 Main Jet $9.95 Pilot Jet $9.95 Leak Jet $9.95
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Tokyomods Less Tension Throttle Spring
Is your throttle to stiff? This Tokyomods low tension throttle return spring was designed to reduce the stiff feeling in your Bike or ATV throttle. This custom throttle spring works with any Keihin FCR type Carburetors. This is a great addition to the Tokyomods Carburetor modification.
Price: $29.95
Model
Tokyomods EFI Less Tension Throttle Body Spring
The Tokyomods EFI Less Tension Throttle Body Spring is now available. Reduce that stiff throttle feel on your fuel injected CRF250R and CRF450R with the Tokyomods Less Tension EFI Throttle Body Spring. Our EFI less tension spring installs easily with no special tools needed.
efispring
Price $29.95
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