Description: Boyesen Dual Stage Power Reeds Fits: Yamaha1979-1982 IT250, 1980 IT425, 1979 IT400, 1981-1982 IT465, 1983-1984 IT4901978-1982 YZ250, 1989 WR/YZ250, 1979 YZ400, 1980-1981 YZ465, 1982-1983 YZ490REVOLUTIONARY 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 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. THE BENEFITS 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. Looking for other products? Please check out our eBay store for more Vintage Motorcycle products! ASK A QUESTION/EMAIL: We attempt to answer all questions as soon as possible, usually within one business day. Questions during evenings & weekends will be answered the next business day. SHIPPING: Most fixed shipping and free shipping rates on eBay ads only apply to the lower 48 states. Shipments to Alaska, Hawaii, APOs, Puerto Rico, Guam and international locations may have additional shipping costs applied. Please contact us for more information. Many of our products are shipped via USPS. Please be aware that USPS does not always scan their packages so the tracking number may not have any information until it is delivered. Our parcels are picked up by USPS the same date or the next postal service day that the tracking number shows being generated. **PO BOX Addresses: Please provide BOTH the PO BOX and PHYSICAL ADDRESS** COMBINED SHIPPING DISCOUNTS: For multiple quantities of the same item, just change the quantity in the box next to "Buy It Now" and eBay will automatically calculate the discount. For combined orders with different items, use "Buy it Now" and then "continue shopping" on each item and then prior to completing the payment, use the "request a total from seller" link in checkout and we will adjust the shipping total and send you a new invoice. If multiple item numbers are purchased and paid without using "request a total from seller", a combined shipping discount will not be offered in a refund form. Multiple items must be paid in a single payment in order to qualify for a shipping discount. INTERNATIONAL BUYERS: Customs fees, brokerage fees, taxes, or duties are the buyer's responsibility and are not included in the cost of shipping listed on the eBay ad. Item values will be stated as the amount paid for that item (excluding shipping). We can not mark items as "gifts" or change the value. INTERNATIONAL SHIPPING/TRACKING: We ship USPS (United States Postal Service) First Class Mail International, Priority Mail International and Express Mail International. Please be aware that First Class International Mail and Priority Mail Small Flat Rate Boxes and Envelopes do not have tracking capability. Please allow up to 60 days for delivery. WARRANTY: If any products are found defective, we will assist in resolving the issue. The product will need to be returned to us or the manufacturer to determine if a replacement item will be issued. However, it is at the discretion of the manufacturer to determine if the item is defective. EBAY LISTING: We strive to make our eBay ads complete and accurate. Some pictures we use are provided by the manufacturer and maybe generic to cover many models of vehicles. Some items may have a slightly different appearance than what is shown in the picture. Please review the entire description to verify proper fitment. Thank You, Vintage Cycle Parts A Division of Factory Powersports
Price: 39.95 USD
Location: Longview, Washington
End Time: 2024-07-24T19:45:22.000Z
Shipping Cost: 3.99 USD
Product Images
Item Specifics
Restocking Fee: 20%
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
Manufacturer Part Number: 640
Brand: Boyesen