$34.66 Buy It Now or Best Offer
free,30-Day Returns
Seller Store parts_giant
(562827) 99.4%,
Location: Grand Rapids, Michigan
Ships to: US,
Item: 335649132398
Restocking Fee:No
Return shipping will be paid by:Buyer
Returns Accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Boyesen:Boyesen
Manufacturer Part Number:640
Warranty Details:See Manufacturer
Boyesen Power Reeds #640 for Yamaha Product Details 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 equals 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.Quicker acceleration for that all-important holeshot.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 reed petals. Fit GuideModelPower ReedCountry of OriginUSAMaterialFiberglass Product Fitment This item fits the following applications:Yamaha IT250 1977-1983Yamaha IT400 1979-1985Yamaha IT425 1979-1985Yamaha IT465 1979-1985Yamaha IT490 1979-1985Yamaha YZ250 2-Stroke 1978-1982, 1989Yamaha YZ250WR 1989Yamaha YZ400 1979Yamaha YZ465 1980-1981Yamaha YZ490 1982-1983 Shipping We guarantee your satisfaction, that’s why our team works hard to get your gear to your door as fast as possible. All items you purchase from PartsGiant are brand new and professionally packaged for safe delivery to your door. International Shipping: Import taxes, duties and other charges vary by location and are the sole responsibility of the buyer. Please check with your country’s customs office to determine what these costs may be prior to purchasing. Payments We accept PayPal for all eBay transactions. We are required to collect a 6% sales tax for Michigan residents only.
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