124 / 612
W
atercraft
t
ools
c
hemical
e
lectrical
c
ontrol
s
uspension
e
ngine
i
ntake
V
intage
116
ORDER: 800-998-3529
TECH: 310-637-8330
Size
A
B
C
D
Total Width
FCR-MX37
48
63.5
191.8
–––
120.8
FCR-MX39
48
63.5
191.8
–––
120.8
FCR-MX41
48
63.5
191.8
–––
120.8
FCR-MX Carburetor Dimensions
Float Height
9mm
A
C
B
D
No. Description
Application Keihin No.
Order No.
5.
Top Cover
All
1030-897-2000
021-710
6.
Gasket, Top Cover
All
1202-895-6000
021-711
7.
Screw M4 x 12mm
All
0136-806-1100
021-700
8.
Screw M4 x 8mm
All
0136-808-1100
021-010
10.
Bracket
All
1190-840-2101
021-712
1190-B40-2100
11.
Screw 5 x 8mm
All
93500-05008-1H
021-713
12.
Throttle Shaft
All
5025-B35-2201
–––––––
14.
Coil Spring
All
1305-A83-2000
021-718
15.
Washer
All
0301-092-700
021-018
16.
Link Arm Complete
All
1061-831-2101
021-721
18.
Stop Screw
All
4110-825-1100
021-723
19.
Throttle Valve
All
N501-49C01
021-320
(Throttle Valve requires qt1 of part #20, Roller
021-027
)
20.
Roller
All
1119-803-7002
021-027
21.
Vaccum Release Plate All
1609-809-2100
021-725
22.
Seal
All
1099-817-2001
021-033
23.
Jet Needles
All
N427-OC-XXX
Pg.118
24.
Clip, Jet Needle
All
0403-802-1000
018-616
25.
Needle Set Screw
All
1421-802-2000
021-727
26.
Main Nozzle
All
1154-842-2000
021-728
27.
Main Jet
All
99101-357-XXX
Pg.150
28.
Slow Jet
All
N424-21-XXX
Pg.148
29.
Starter Jet
All
99101-393-XXX
Pg.150
30.
Slow Air Jet
All
99101-124-XXX
Pg.149
Part #30 can be replaced with Slow Air Screw.
Pg.149
30.
Slow Air Jet (some OEM)
N424-33-XXX
Pg.148
32.
Pilot Screw 40mm All
N446-07A00
021-800
32A.
Pilot Screw 50mm
All
N446-26A00
021-729
33.
Spring, Pilot Screw
All
1290-812-2001
021-041
FCR-MX Replacement Parts
Applications:
FCR-MX37, FCR-MX39, FCR-MX41.
FCR-MX Exploded View
Carburetors are intended for off-road riding and
racing use only. Not legal for use in California or
other locations where similar pollution laws may
apply.