3
FUEL
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/
BILGE
STEERING
&
CONTROLS
BODY
ACCESSORIES SERVICE TOOLS
/
HARDWARE
CHEMICAL FREESTYLE
RACING
FOUR
STROKE
POP-OFF GAUGE
For Accurate adjustment of pop off
pressure levels.
Description
Part No.
A
Mikuni Gauge
30
Lbs.
60
Lbs.
100
Lbs.
B
Aftermarket Thumb
Operated Gauge
53-9996
53-9996-60
53-9996-100
53-9995
A
B
MIKUNI TOOL KIT
This handy little kit contains all the tools
necessary to make jetting change, perform
normal maintenance as well as disassemble
and rebuild any Mikuni carburetor.
Description
Mikuni Tool Kit
Part No.
53-9989
MIKUNI POCKET TUNER
A handy pocket-size slide calculator which
can be used to determine required jetting
changes in Mikuni carburetors due to ambient
temperature, altitude or both.
Description
Part No.
Mikuni Pocket Tuner
53-9988
MIKUNI SUPER BN SPECIFICATIONS
SUPER BN MANUAL
For the watercraft tuner working with
Super BN series carburetors.
Description
Part No.
Mikuni Manual
53-9999
MIKUNI GENUINE
CARBURETOR REBUILD KITS
Kits include all necessary gaskets, diaphragms,
and hardware required to disassemble and
rebuild Mikuni carburetor.
Mikuni
Diaphragm Cover Part No.
BN38/44mm
Round
53-2110
Super BN38/44/46mm,
I Series 38/40
Square
53-2114
I Series 46mm Square
53-2115
I Series 44mm Square
53-2117
Yamaha GPR (66E/66V)
Hot
Low High
Needle Arm Spring Low Speed High Speed Choke or
Part #
Carb.
Speed Jet Speed Jet Valve (grams)
Adjuster
Adjuster
Primer
Color
53-2050
BN38-34-8113 65
107.5 2.0
115
gr.
1.0
1.5
Primer
Silver
53-2060
BN44-40-8052 100 125
2.3
65
gr.
1.0
1.5
Primer
Black
53-2060
S BN44-40-8067 120 140
2.5
80
gr.
1.0
1.5
Primer
Silver
53-2065
BN46-42-8002 120 150
2.5
80
gr.
1.0
1.5
Primer
Silver
53-2062
BN44-40-43
120 115
1.5
115
gr.
1.0
.75
Choke Black
53-2063
BN34-28-8010 77.5 80
1.5
65
gr.
Choke Black
53-2072
BN40I-38-II
147.5 1.5
80
gr.
Choke Black
53-2074
BN38-34-8075 65
107.5 2.0
115
gr.
Primer
Black
53-2080
BN40I-38-24
70
167.5 1.5
95
gr.
1.25
closed Choke Black
53-2085
BN40I-38-26
67.5 140
1.5
95
gr.
1.25
closed Choke Black
53-2090
BN40I-38-27
67.5 142.5 1.5
95
gr.
1.25
closed Choke Black
53-2095
BN46I-42-B4
77.5 162.5 2.0
95
gr.
1.25
closed Choke Black