3
FUEL
SYSTEMS
ENGINE/
GASKETS
EXHAUST DRIVE LINE
HANDLING
ELECTRICAL WATERLINE
/
BILGE
STEERING
&
CONTROLS
BODY
ACCESSORIES SERVICE TOOLS
/
HARDWARE
CHEMICAL FREESTYLE
& 800
SXR
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
GENUINE CARBURETOR
REBUILD KITS
Kits include all necessary gaskets, diaphragms, and hardware required to disassemble and
rebuild Mikuni carburetor.
Mikuni
Diaphragm Cover
Part No.
Super BN 38mm, 44mm, 46mm
Square
53-2114
I Series 38/40
*
Sea Doo Pre 97, Kawasaki 750 98-02, 800 SX-R 03-05 and ALL Mikuni
Performance Super BN Square Body 38mm, 44mm and 46mm carbs.
I Series 46mm
Square
53-2115
*
Sea Doo 951 98 and newer
I Series 44mm
Square
53-2117
*
Yamaha GP800 98-99, GP 800R 00-04, XL 800 01, XLT 800 02-04,
GP 1200R 00-02, XL1200 Limited 99-00 and XLT 1200 01-04
BN 38mm, 44mm
Round
53-2110
*
BN carbs are “Old Style/Round Body” with round diaphragm covers
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