FCR-MX EXPLODED VIEW
FCR-MX37, FCR-MX39, FCR-MX41

Click here for other parts not listed below

Scroll down to bottom of page for other parts

 
5. Top Cover All 1030-897-2000 021-710
6. Gasket, Top Cover All 1202-895-6000 021-711
7. Choose M4x12 socket head screw in fasteners or FCR-MX Screw M4 x 12mm KEIHIN #0136-806-1100 021-700
8. Choose M4x10 socket head screw in fasteners or FCR-MX Screw M4 x 8mm KEIHIN #0136-808-1100 021-010
10. FCR-MX Bracket KEIHIN 021-712
11. FCR-MX Screw M5 x 8mm KEIHIN #93500-05008-1H 021-713
15. Washer All 0301-092-7000 021-018
18. Stop Screw All 4110-825-1100 021-723
20. FCR-MX Roller 1119-803-7002 (SKU 021-027)
21. FCR-MX Vaccum Release Plate all 1609-809-2100 021-725
23. Needles N427-OC-XXX
24. Clip, Jet Needle All 0403-802-1000 018-616
25. Needle Set Screw All 1421-802-2000 021-727
27. MAIN JET 99101-357
28. SLOW JET N424-21
29. STARTER JET 99101-393
30. SLOW AIR JET 99101-124 (99101-ZF5)
30. Slow Air Jet (some OEM) N424-33
31. Leak jet (some carbs) N424-52
32. Pilot Screw All N446-26A00 021-729
33. Spring, Pilot Screw All 1290-812-2001 021-041
36. Valve seat (will not work on some OEM) 3.40 N361-043-3.40 (SKU 021-241)
36. Valve Seat (will not work on some OEM) 3.60 All N361-043-3.60 021-242
36. Valve Seat (will not work on some OEM) 4.00 All N361-043-4.00 021-244
37. O-Ring, Valve Seat All 16958-397-7710 021-047
38. Screw, Valve Seat All 0118-806-1100 021-250
42. Float Valve All 018-504 CRP00130
43. Clip, Float Valve All 0405-019-1000 018-674
44. Fuel Screen All 2009-811-2100 021-730
45. FCR-MX Gasket, Packing, Float Bowl All 1202-896-6000 021-731
47. FCR-MX Cover, Accel. Pump All 1230-826-2002 021-057
49. FCR-MX Float Bowl All 1050-948-2101 021-734 only use with itme 46 drain screw (This bowl not for use with leak jet)
49a.FCR-MX Float Bowl w/leak jet Boss All 1050-948-2101 021-734A (only use with item 46 drain screw)
52. U-Ring, Accel. Pump All W9353-36000 021-067
53. Spring, Accel. Pump All 1300-142-2000 021-069
67. FCR-MX Coil Spring #2 All 1305-A82-2000 (SKU 021-717)
69. FCR-MX Washer All W1795-223-9900 (SKU 021-741)
70. E-Clip All 16179-676-3000 021-742
72. FCR-MX Rod All 1458-858-2001 (SKU 021-743)
91. Washer All 0301-078-1200 021-101
92. Spring All 1300-112-2000 021-103
100. FCR-MX Screw M4 x 8mm All 0136-804-1100 (SKU 021-105)
103. MAIN AIR JET 99101-393
109. FCR-MX Collar All 16145-MZ2-7800 (SKU 021-747)
140. FCR-MX Screw All 0110-804-1200 (SKU 021-749)
148. FCR-MX Vent Hose All 0803-884-0100 021-751
177. FCR-MX Stop Screw All 1034-905-2000 (SKU 021-722)
180. FCR-MX O-Ring All 16978-ZB9-0050 (SKU 021-732)
199. FCR-MX Washer All 0301-261-36G5 (SKU 021-753)
206. Vent Hose All 0803-878-0000 (SKU 021-750)
207. FCR-MX Vent Hose All 95003-07033-31 (SKU 021-752)
209. Buffer Plate All 1157-812-7000 021-754
212. FCR-MX Cover All 1230-850-2000 (SKU 021-755)
213. FCR-MX reduced tension throttle spring for Honda TRX450R 2006-2009 (SKU 024-221)
241. FCR-MX Screw (Torx) All 0137-261-36G5 (SKU 021-757)
243. FCR-MX Spring All 1290-A65-2000 (SKU 021-716)
244. Collar All 1118-B36-2000 021-748
249. Washer, select size needed from fasteners listed via this link
250. FCR-MX Stop Screw All 16124-KR3-6010-M1 (SKU 021-724)
251. FCR-MX Coil Spring All 16053-KT7-0030 (SKU 021-720)
265. Cover Screw All 0136-839-1100 021-759


There are 2 different types of orings in this kit. This is not a factory serviceable part so there is no way to cross reference if it will fit or not. Some carbs will have to modify and cut the gasket then seal with RTV silicone. Examine carb gasket vs the pictures.
FCR-MX middle body oring kit

 
tokyo mods air/fuel mixture screwfcr-mx air fuel screw
VALUE air/fuel mixture screw for FCR-MX 14-K657
Tokyo mods BLUE air/fuel mixture screw for FCR-MX 024-200B
Tokyo mods MAGENTA air/fuel mixture screw for FCR-MX 024-200M
Keihin FCR-MX Pilot Screw 021-729
TOKYOMODS FCR-MX HOT START
Tokyo mods BLUE billet hot start nut for FCR-MX 024-210B
Tokyo mods BLACK billet hot start nut for FCR-MX 024-210K
Tokyo mods MAGENTA billet hot start nut for FCR-MX 024-210M
 
fcr lower tension spring
Tokyomods Less tension throttle spring for Honda TRX450R 2006-2009 SKU 024-221
 
FCR AIR CLEANER/AIRBOX ADAPTERS FOR REMOVABLE BELL CARBS

Screws to mount airbox adapters 021-012


FCR28 - FCR33 2-1/4” (57mm) 28mm 021-211
FCR35 - FCR41 2-7/16” (62mm) x 66mm OA 28mm 021-212
FCR35 - FCR41 2-1/4” (57mm) 40mm 021-213
FCR35 - FCR41 2-11/16” (68mm) 28mm 021-215
FCR35 - FCR41 Raptor (O.D.52mm) 27mm 021-600
FCR35 - FCR41 FCR to H-D® CV 3 bolt 34mm 021-601
FCR35 - FCR41 Big Twin, sportster 883/1200 31.5mm 021-601A
FCR35 - FCR41 TRX450/XR650R 49mm (O.D.62.4mm) 021-612
FCR35 - FCR41 YFZ450 (O.D. 58.3mm) 23.5mm 021-613
FCR35 - FCR41 FCR-MX OEM (O.D. 56mm) 21.5mm 021-614

FCR gasket 021-439a
Model Year

FCR carb

venturi size

 Air filter adapter Qty reqd K&N ref K&N Part number Comments Qty reqd
DUCATI                
750/900SS Supersport 91-99 41 mm 021-212 2 DU-0900 005-192 fits stock airbox 1
M750/M900 Monster 95-99 41 mm 021-212 2 DU-0900 005-192 fits stock airbox 1
HONDA                
XR250R all 35 mm 021-213 1 HA-1312   fits stock airbox  
TRX400EX all 39, 41mm 021-213 1     fits stock airbox  
TRX450R 04-05 39, 41mm 021-612 1     fits stock airbox  
XR600R 89-99 39, 41mm 021-213 1 HA-1312   fits stock airbox  
XR650R 00-04 41mm 021-612 1     fits OEM filter  
CBR600F Hurricane 87-90 32, 33mm 021-211 4 RU-3000 005-178 individual pods 2
CBR600F2 Hurricane 91-94 32, 33mm 021-211 4 RU-3000 005-178 individual pods 2
CBR600F2 Hurricane 91-94 32, 33mm 021-211 4 RU-2852 005-187 dual filter kit 1
CBR600F2 Hurricane 91-94 35mm 021-212 4 RU-2952 005-174 dual filter kit 1
CBR600F2 Hurricane 95-98 35mm 021-212 4 RU-2952 005-174 dual filter kit 1
CBR900RR 94-99 41mm 021-212 4 RU-2952 005-174 dual filter kit 1
CBR1100XX Blackbird 94-99 39, 41mm 021-212 4 RU-2952 005-174 dual filter kit 1
KAWASAKI                
KLX250R (kickstart) 94-96 35mm 021-213 1     fits stock airbox  
KLX300R (kickstart) 97-07 35mm 021-213 1     fits stock airbox  
ZX6D, ZX6E 88-97 35mm 021-212   RU-2952 005-174 dual filter kit 1
ZX1000B ZX-10 88-90 37, 39, 41mm 021-212 4 RU-2952 005-174 dual filter kit 1
ZX1100D ZX-11 race car only 37, 39, 41mm 021-212 4 021-212 005-174 dual filter kit 1
KTM                
LC4 400RXC/ 600RXC all 39, 41mm 021-212 1     use OEM filter  
950 Adventurer 03-07 39, 41mm 021-212 1     dual filter kit  
MOTO-GUZZI                
Sport 1000 (carbureted models) 94-97   021-600       use OEM filter  
SUZUKI                
SV650 99-02 39, 41mm 021-215 2 SU-6599 005-639 fits stock airbox 2
GSX-R750 96-97 35, 39, 41mm 021-215 4 SU-7596 005-345 fits stock airbox 1
TRIUMPH                
DOHC Triple 94-96 39mm 021-212   RU-2780 005-188   3
YAMAHA                
FZR400 88-89 32, 33mm 021-211 4 RC-2890 005-170 individual pods 2
YZF450   39, 41mm 021-613 1     fits stock airbox  
FZR600 89-96 32, 33mm 021-211 4 RC-2890 005-170 individual pods 2
YZF600 89-95 33mm 021-211 4 RC-2890 005-170 individual pods 2
FZR1000 87-88 37, 39, 41mm 021-212 4 RU-0800 005-116 005-116 4
YZF1000R 1997 39, 41mm 021-215 4 YA-1089 005-585 fits stock airbox 1
YZF-R1 98-99 39, 41mm 021-215 4 YA-1089 005-585 fits stock airbox 1