Boyesen Power Reeds Yamaha

Description

Boyesen Power Reeds Yamaha for
REVOLUTIONARY PERFORMANCE

Boyesen’s patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equal more power by creating:

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.

THE BENEFITS OF Boyesen Power Reeds Yamaha

• Quicker acceleration for that all-important hole shot.
• Crisper throttle response for fast corner exits and surer jumps.
• More horsepower throughout the powerband for guaranteed performance.
• Improved engine efficiency and fuel economy for the long-distance rider.
• Longer life – Boyesen Power Reeds outlast all other aftermarket reeds

Boyesen Power Reeds Yamaha APPLICATIONS:

YAMAHA	Year	Part #
80 cc Sno-Scoot GP 292	1988-1992 1974	531 522
SR 292	1975	522
440 Exciter	1976-1981	533
SS 440	1979-1985	532
485 Phazer	1984-1992	534
485 Phazer II, LE, ST	1993-1997	534
485 Phazer II, Mtn., Lite	1996-2000	534
485 Venture XL, TR	1996-1999	534
500 Phazer	1999-2000	534
500 V-Max	1994-1996	536
500 V-Max	1997-2001	539
500 Venture	1996	536
500 Venture, XT	1997-2000	539
500 SX-R	2000-2001	539
540 SR-V	1981	532
540 SR-V	1982-1992	534
540 VK, VKII, VKIII	1996-2003	532
540 XLV	All	532
600 SRX	1998-1999	540
600 V-Max	1994-1996	536
600 V-Max	1997-1998	539
600 V-Max	1999-2003	538
600 Venture	1996	536
600 Venture	1997-1998	539
600 Venture	1999-2003	538
600 Venture	2004-2006	540
600 Mountain Max	1997-1999	539
600 Mountain Max	2000-2002	538
600 SX-R	2000-2003	538
600 SX Venom	2004-2006	538
700 SRX	1998-2002	540
700 V-Max SX	1997-2002	538
700 Mountain Max	1997-2004	538
700 Venture	1998-2003	538
700 Venture	2004	540
700 Deluxe	1998-2001	538
700 V-Max XT	1998	538
700 SX-R	2000-2001	538
700 SX Viper / ER / Mtn	2002-2006	540
750 V-Max 4, ST	1992-1994	535
800 V-Max 4 / Mountain Max	1995-1997	537

Boyesen Power Reeds Yamaha

A POWERFUL SOLUTION TO A SIMPLE PROBLEM

One reed petal is NOT enough! The reed petals in all 2 stroke engines take an incredible amount of abuse! At peak RPM, reed petals are opening and closing hundreds of times per second. Over time, a single reed loses its ability to regulate flow rates in proper proportions. This causes a loss of reed petal reaction and reduces the consistency of peak horsepower. Boyesen’s revolutionary dual-stage reed design delivers more usable power than stock. Stock single-stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen’s one soft reed on top of one firm flow-through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can’t possibly duplicate that performance. 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. The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports and generating 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.

THE BOYESEN POWER REED ADVANTAGE
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.

Boyesen Power Reeds Yamaha