Page 26 - Mikuni Carburetor Catalog 21

BN Rebuild Kits
BN REBUILD KIT Round Pump Carb Type
Idle screw
High
Speed Screw
2
Washers (Alum.)
BZ25/26 O-Ring (BN44 Only)
MK-BN38/44 For BN34, BN38, & BN44 Round Pump Styles (Kit Includes Circled Items 1-15)
This drawing is of BN44 carb; however, all parts called out also fit BN34 & BN38 carbs, except those noted otherwise.
1 B30/305 O-Ring (I.D. 4.8mm)
3 VM26/25 Washer, N.V. (Red)
4 BN44/130 Gasket (Black)
5 BN38/314 Check Valve (Teflon-tan)
Washers (Alum.)
2 BZ25/26 O-Ring (I.D. 6.07 mm)
Low Speed Screw
VM 26/26
Needle & Valve Seat Assy:
BN44...2.0 Seat BN38...1.5 Seat BN34...2.5 Seat For Viton-tip needle, refer to pg. 31.
6
7
8 9
C6=0307
BN38/02 Main Diaphragm Assembly
BN38/525 Gasket, 2 pcs (Tan)
BN38/469 Gasket, Pump (Clear)
BN38/467 Diaphragm, Pump (Clear)
BN38/526 Gasket, Pump (Black)
13 BN38/86 Spring 14 VM30/97 Pin, Arm
C6=0307 Screw 15 BN38/534 Arm
10
11 BN38/468 Check
Regulator Body Assembly
Pump Body
Cover, Pump Body
Cover, Fuel Inlet BN38/11
BN38/324 Screw
CARBURETOR REBUILD KITS
Mikuni offers a rebuild kit that contains all the necessary O-rings, gaskets, check valves, diaphragms, washers and springs to completely rebuild your carb and make it run like new again. See exploded view for details of each kit.
•MK-BN38/44SPR for Super BN
•MK-BN38/44 for Standard BN Series BN38 and BN44. (Does not include needle valve.)
Valve (Clear)
12 BN38/12 Packing (Rubber-Black)
BN38/320 Screw, Phillips Head (6)
or BN34/90 Screw, Allen Head-Stainless (6)
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