Boyesen
Oem Block Reeds
YAMAHA Models Years
Power Reeds
Pro Reeds
Gasket
DT/TY/YZ 50
05-620 05-658
DT 50 MX DT 80 MX
Boyesen Power Reeds for your Stock Oem Reed Block Maximum Power achieved through air intake, acceleration and distribution.
1981 - 83 05-658 1978 - 80 05-658
GT 80 PW 50 PW 80 YZ 60 YZ 65 MT 80 TY 80 YZ 80 YZ 80 YZ 80 YZ 80 YZ 80 YZ 80 YZ 85 YZ 100 RT 100 DT 100 DT 100 DT 100 DT 125 DT 125
More valves equals more power by creating:
All All All
05-674 05-673 05-605 05-6134 05-620
More Air Flow The dual-stage design allows you to replace your stock reed stop with a Rev-Plate which permits the reeds to open freely and function efficiently. More Air Velocity The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports. More Overall Power Dual-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top reed and the bottom reed allow the reeds to respond quickly and accurately to changes in engine pressure. This translates into quicker acceleration, crisper throttle response and increased horsepower throughout the powerband.
2018 - 22
05-P165
All
1974 - 84 05-6TR133
1974
05-620
1975 - 79 05-605 1980 - 84 05-603 1985 - 86 05-627 1987 - 92 05-630 1993 - 01 05-648
05-P58 05-P165
05-9230 05-9230
2002 - 22
05-6105 05-603
All
1990 - 98 05-6TR133 1977 - 78 05-605
1983 1991 1974
05-620 05-646 05-620
1975 - 87 05-603 1988 - 93 05-666
DT 125 / R
IT 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125 YZ 125
All
05-603 05-605
1974
1975 - 79 05-603
1980 - 87
05-609
05-P49 05-P53 05-P49 05-P08 05-P141 05-P147 05-P184 05-P202 05-P217 05-P217
1988 - 92 05-604
05-9231 05-9231 05-9221
1993
05-609
1994 - 99 05-642
2000
05-694
2001 - 02 05-697
2003 2004
05-6111 05-6119
2005 - 21 05-6130
05-9233 05-9233
2020 - 22
YZ 125X
05-6130
Move up with Carbon & Dual-Stage Technology
IT 175 TY175
1980 - 83 05-609 1975 - 83 05-6TR133 1987,88,90 05-603 1989,91,96 05-666 1992 - 95 05-654
Pro Series dual-stage reeds combine a carbon-fiber top reed with a fiberglass bottom reed for unrivaled performance. The Pro Series Reeds are more responsive than our traditional Power Reeds. The carbon-fiber top reed has excellent response characteristics that provide even quicker acceleration, stronger throttle response, and more over-rev than our standard Power Reeds. The fiberglass bottom reed provides stability and longer reed life. The Benefits • Quickest acceleration any reed can offer for that all important holeshot. • Crisper throttle response making challenging obstacles effortless. • More overrev so you can run a gear longer going into a corner or jump • Increased life over traditional carbon fiber reeds. • The most potent reed available delivering power you can have confidence.
DT 200 / R DT 200 R
DT200 R/WR
IT 200
All
05-609
WR 200 TY 250 TY 250 TY 250 DT250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 YZ 250 X WR 250 WR 250 TY 350 YZ 360 DT 400 YZ 465 YZ 490 YZ 490 WR 500
1992 - 95 05-609
1977 1984 1988
05-663 05-663 05-663
1977 - 79 05-663 1978 - 82 05-640 1984 - 88 05-624
1989
05-640
1990 - 96 05-644 1997 - 98 05-679 1999 - 00 05-689 2001 - 02 05-6102 2003 - 04 05-6112
05-P09 05-P64 05-P126 05-P157 05-P186 05-P218 05-P218 05-P09 05-P09
05-9231 05-9224 05-9224
2005 - 22 2016 - 22
05-6131 05-6131 05-644
1989
05-9231
1990 - 97 05-644
All
05-663
thru 1978 05-606 1977 - 78 05-663
All
05-640
1982 - 83 05-640 1984 - 90 05-624 1991 - 96 05-624
*Please visit our website for current prices E311
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