The all-new VForce4 is built upon the solid foundation that has made the VForce3 such a success for the last 10 years. While the VForce3 has been continually refined over the years, this is a complete redesign of the entire system.We jokingly say, The only thing we didn't change is the bolt pattern. However this is actually quite true. All the components that go into making a VForce reed valve system have been significantly changed since the VForce3. The unique design of the VForce reed valve system features double the reed tip surface over a conventional reed valve design.
This has two major benefits: 1 The reed petals only travel half the distance as a conventional reed valve design to get the same airflow. 2 Because the reed petals only need to travel half the distance of that on a conventional reed valve design, there is a greater chance of them being fully opened as well as a better chance of sealing when they are "closed". A reed petal never truly "closes" in a classic sense, as it is always in movement.
Consider this, an engine operating at 8,000 RPM results in a reed petal opening and closing 133 times in one second. This fact, sheds light on another VForce advantage.
Since the petals are only traveling half the distance, they generally last longer are they receive less wear than the reed petals on a conventional reed valve design. Double the reed tip surface over a conventional reed valve design. Increased bottom end, stronger mid-range and longer top-end.Greater efficiency due to reduced reed petal travel. More airflow means more horsepower. Screw free design eliminates risk of screws going through motor. Screw free design enables super quick reed petal changes. NEW AND IMPROVED VFORCE4 FEATURES.
All-new reed petal resin system, carbon fiber and lay-up. Pre-curved reed petal ensures better seal at tip.
Wider reed cage for maximum airflow. Combined reed tip area increased by 10.5% resulting in increased total air flow. Airfoil shape added to cage tip to increase air velocity from outer ports. Long reed stops added to progressively slow petal tip velocity, for increased petal durability. Reduced frontal area of central wing by 15.6% combined with a more aerodynamic shape.
Installation instructions, complete VForce4 reed valve system (including reed petals) and gaskets. FREE product replacement if you are unsatisfied. Thanks for shopping at MOTOR CITY ATV, LLC of Metro Detroit, MI. We take apart hundreds of ATVs every year, if you need a part, just ask, we have it! Many Yamaha Banshee parts are universal, and will fit the following years: 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 and 2006.87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06. Add a map to your own listings. The item "VFORCE 4 Reed Valve VFORCE4 Moto Tassinari Yamaha Banshee 350 1987-2006" is in sale since Thursday, June 14, 2018.
This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Intake & Fuel Systems\Other". The seller is "minkia38" and is located in Macomb, Michigan. This item can be shipped worldwide.