520
ORDER: 800-998-3529
TECH: 310-637-8330
V
INTAGE
I
NTAKE
E
NGINE
S
USPENSION
C
ONTROL
E
LECTRICAL
C
HEMICAL
T
OOLS
W
ATERCRAFT
No. Description
Mikuni No.
Order No.
1.
Gasket, Pump (Black Fiber)
(2)
BN38/547
–––––––
1A.
O-Ring, Pump Body
616-72001
–––––––
2.
Diaphragm, Pump (Clear)
BN34/97
–––––––
3
. Check Valve (Clear)
(2)
BN34/124
–––––––
4.
Grommet, Check Valve
(2)
BN34/125
–––––––
5.
Diaphragm, Damper (Black Rubber) BN34/100
–––––––
(BN44 only)
5A.
Diaphragm, Damper (Black Rubber) BN34/129
–––––––
(BN38 and later BN44)
6.
Gasket, Damper (Black)
(BN44 only)
BN34/100
–––––––
6A.
O-Ring
(BN38 and later BN44)
616-92007
–––––––
7.
Filter
BN44/146
–––––––
8.
O-Ring, Hi Speed
B30/305
–––––––
9.
O-Ring, Low Speed
MD12/16
–––––––
10.
O-Ring, Needle Valve
KV/10
002-709
11.
Gasket, Valve Body
BN34/123
–––––––
12.
Check Valve (Clear)
BN34/107
007-492
13.
Spring, Arm (115 grams)
730-03027
007-323
14.
Pin, Arm
VM30/97
–––––––
15.
Arm (Stainless)
BN38/534
–––––––
16.
Diaphragm Assembly, Main
BN44/145
007-307
Super BN Replacement Parts
(Items 17-43 shown for reference only. Not included in Rebuild Kit)
Super BN Carburetor Rebuild Kit
(see next page)
MK-BN38/44SPR - For Super BN38, BN44, and BN38I, BN40I
Square Pump Styles.
Rebuild Kit includes parts 1 through 16
to rebuild one carburetor.
17.
Screw with Washer, Stainless (4) BN34/120-30
007-302
18
Cover, Pump (Unpainted)
BN34/95B
007-310
Cover, Pump (Black)
999-642-002-1A
007-311
Cover, Pump (Silver)
999-642-002-1B
007-312
Cover, Pump (Red)
999-642-002-1C
007-313
18A
Fuel Pump Block Off Plate
BN34/126
007-309
19.
Body Assembly, Pump
(BN44 only)
BN34/98
–––––––
19A
Body Assembly, Pump
BN34/128
–––––––
(BN38 and later BN44)
20
Stop Screw, Idle
(BN44 only)
BN34/109
–––––––
20A
Stop Screw, Idle
BN34/82
–––––––
(BN38 and later BN44)
21.
Washer, (Aluminum)
BN38/39
007-304
22.
Spring, Idle
(BN44 only)
BN38/341
007-491
22A
Spring, Idle
BN38/344
007-316
(BN38 and later BN44)
23.
Cap
(BN44 only)
BN26/03
–––––––
23A.
Cap with Tab
BN44/118
–––––––
(BN38 and later BN44)
24.
Adjuster, Hi Speed
604-25017
007-315
24A
Adjuster, Hi Speed
BN44/167
–––––––
25.
Spring, Hi Speed
BN38/344
007-316
26.
Washer, Hi Speed (Aluminum)
BN38/39
007-304
27.
Washer, Low Speed (Aluminum) BN38/172
007-305
28.
Spring, Low Speed
BN38/343
007-318
29.
Adjuster, Low Speed
(BN44)
604-26008
007-317
29A.
Adjuster, Low Speed
BN38/477
–––––––
(BN38 and later BN44)
29B
Adjuster, Low Speed
BN38/166
–––––––
30.
Cap
BN44/118
–––––––
31.
Needle Valve Assembly
786-35015-1.5
002-880
(see next page for additional sizes)
32
Spring Clip, N.V.
VM15/285
–––––––
33.
Plate, N.V. Retainer
BN34/117-GG
–––––––
34.
Screw with Washer
CW2=0307-G
007-494
35
Jet, Slow Speed
N100.606
Pg.517
36.
Jet, High Speed
N102.221
Pg.517
37.
Screw
BV15/121-05-GG
–––––––
38.
Plate, Valve
BN34/108-GG
–––––––
39.
Valve Body Assembly
BN44/165
–––––––
No. Description
Mikuni No.
Order No.
40.
Screw, 4 x 14mm
C5-0414-G
007-493
41.
Screw, 3 x 8mm
C6-0308-G
007-300
42.
Cover, Stainless
BN44/147
–––––––
43.
Screw with Washer, Stainless
(4)
MCWS-0512
007-270
44.
Spring (not shown in drawing)
BN34/110
–––––––
45.
Bushing
BN34/111
–––––––
46.
Nut
B40I/35
–––––––
Super BN 44/46
Super BN 38
Early 44
All 38 and
late 44
BNI Carb Body
Block Off Plate - BN34/126
Primer Fitting - VM34/181
90º Elbow - DF44 - 2/70
Super BN (Square Pump Body)
1...,516,517,518,519,520,521,522,523,524,525 527,528,529,530,531,532,533,534,535,536,...556