150 HP XR2, XR4, Magnum, Marathon (vertical reed blocks)
5432022-6616991,0A904645-0 C239552
1997-90
5
B265V
150 HP XR4, XR6 Carburated
0C239553-00303045
1991-95
5
B265
150 HP Carburated
0G303046-0G960500 & Up
1996-Up
4
B264-1 3
150 HP XRI
0D082000-0G303045
1993-95
5
B265E
150 HP EFI, DFI •
0G303046-0T409000 & Up
1996-UP
4
B264-13
175
175 HP Carburated (vertical reed blocks)
4301235-6618751,
OC1 00860-0C239552
1976-90
5
B265V
175 HP Carburated
0C239553-0G303045
1991-95
5
B265
175 HP Carburated
0G303046-0G960500 & Up
1996-UP
4
B264-13
175 HP EFI, XRI
0D000750-0G303045
1991 -95
5
B265E
175 HP EFI
0G303046-0T409000 & Up
1996-Up
4
B264-13
175 HP DFI
OT1 78500 & Up
2001-Up
4
B264-13
200
200 HP Carburated
4839034-6073191
1978-81
5
B265
200 HP Carburated
6073192-6203990
1982
7
B267
200 HP Carburated
6203991 -0C291 519
1983-90
5
B265
200 HP Carburated
0D082000-0G303045
1992-95
5
B265
200 HP Carburated
0G303046-0G960500 & Up
1996-Up
4
B264-1 3
200 HP EFI
0C100861-0C291519
1989-90
5
B265E
200 HP XRI, EFI
0C291 520-0G303045
1991-95
5
B265E
200 HP EFI
0G303046-0T409000 & Up
1996-UP
4
B264-1 3
200 HP DFI
0G386496 an OT1 78500 & Up
1997
6
B266P
220
220 HP EFI
0B117316 & Up
1987-88
5
B265E
225
225 HP Carburated
5628028 & Up
1980-81
7
B267
225 HP Carburated
0G438000 & Up
1994-98
6
B266P
225 HP Carburated
0G437999 & Below
1994-98
6
B266
225 HP Carburated
0G760300-0T408999
99-2001
6
B266P
225 HP EFI
0G438000 & Up
1995-98
6
B266P
225 HP EFI
0G437999 & Below
1995-98
6
B266E
225 HP EFI
0G760300-0T408999
1999-UP
6
B266P
BOYESEN REED APPLICATION CHART
HP
Model
Serial Number
Year
Petals
Part #
250
250 HP Carburated (12 Reed Blocks)
0C101991 & Up
1989-94
B264-24
250 HP ER
0G438000 & Up
1995-98
6
B266P
250 HP EFI
0G437999 & Below
1995-98
6
B266E
250 HP EFI
0G750300-0T4029000 & Up
1 99-UP
6
B266P
250 HP XB
0G980600 & Up
2000-UP
6
B266P
275
275 HP Carburated (12 Reed Blocks)
0C101991 & Up
1989-94
B264-24
280
280 HP
7
B267
Mercury High Performance
44
44XS HP - Single Stage
0B135471 & Up
1987
B16684
150
150 HP EFI
0G502499 & Below
1994-97
5
B265E
150 HP EFI
0G502500 & Up
1994-97
4
B264-13R
200
200 HP EFI
0G610050-0G857000 & Up
1998-UP
4
B264-13R
200 HP DFI
0T235000&Up
2001-UP
N/A
225
225 HP EFI
0D935638-0G61 01 03
1995-97
7
B267E
225 HP EFI
0G610104-0G856999
1998
7
B267E
2.4L
2.4L Carbureted
OC1 75045 & Up
1988-90
5
B265R
2.4L EFI
OA1 68043 & Below
1982-84
7
B267E
2.4L EFI
0A168044-0C276917
1985-90
7
B267E
2.5L
300
2.5L Carbureted
0D030200-0D935271 & Up
1991-95
7
B267R
2.5L EFI
0D030200-0D857000 & Up
1991-UP
7
B267E
2.5LDFI
0T235000&Up
2001-UP
N/A
300 HP EFI 3.OL
0G610221-0T105297
1998-2000
6
B266P
300X EFI 3.OL
0T235084 & Up
2001 -02
N/A
3.4L
3.4L EFI
82H1008-85E1 092 &0A953707-0A953736
1982-86
B264-24
5 Petal Drag Racing Reed
5
B265D
5 Petal, Race engines up to 10,000 RPM
(Circle track racing)
5
B265SP
7 Petal Drag Racing Reed
7
B267D
7 Petal, Race engines up to 10,000 RPM
(Circle track racing)
7
B267SP
B266P
Reeds are one way valves controlling the amount of air/fuel mixture entering the crankcase of your outboard engine, then sealing it in order to prevent it from escaping. Every two cycle outboard has them. But, the stock reeds in your outboard have a single-stage design that limits their efficiency. That's why stock outboards often cough and sputter at idle, fail to deliver a good hole shot, feel boggy or lifeless under throttle application, burn too much fuel or lack top end punch. Plus, standard reeds are made of metal. Should one break, it could cause extensive damage to your outboard.
Boyesen Power Reeds are different.., and better! They feature a patented dual-stage design allowing our reeds to respond instantly to any change in air/fuel flow as you accelerate or back off the throttle. The result? A dramatic increase in efficiency and performance across the entire power band, from stat-up to flat out!