On Sale and Featured Items
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Adjustable Universal Steering Damper. Notched incremental 6 position adjustment. Great steering damper for 250cc - 500cc motorcycles. Requires individual mounting varies bike to bike, includes damper bracket with 8mm stud. 8mm stud can be used in the RD's reflector mount on the frame gusset just under the tank.
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RD Chain Guard Damper Kit - Fits all RD's, R5, DS7 & More see complete fitment below Kit Includes: Rubber Damper, Special Washer, Collar, Screw/washer See product detail for complete fitment
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Spark Plug Cap - 5K or 0K resistance for 14mm spark plug, with 90 degree Elbow (RD/RZ/R5), NGK Type - Reproduction, sold each. These caps are just right for the RDs and other 2 stroke vintage Japanese twins. Includes waterproof covers. For terminal stud type plugs or plugs with removeable terminal nuts (BR8ES, BR8HS). It is not recommended to use both resistor caps and resistor plugs, use either resistor plugs with non-resistor caps, or non resistor plugs with resistor caps.
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128MB USB Drive - Parts Diagrams, Service Manuals and Wiring Diagrams. Choose model and click add to cart Included on this flash/USB drive by model are the following .PDF files: RD350:
- RD350 Parts Diagrams by Yamaha
- RD350 Service Manual by Yamaha - older Yamaha manual - out of print
- RD350 Wiring Diagram - Aftermarket diagram
- 1976-1977 RD400 Parts Diagrams - by Yamaha
- 1978 RD400 Parts Diagrams - by Yamaha
- 1979 RD400 Daytona Parts Diagrams - by Yamaha
- RD400 Service Manual - Aftermarket Euro Haynes Manual - out of print
- RD400_(US)_wiring_diagram - Aftermarket
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Sale!
Vintage Yamaha T-Shirt - from the 1975 "someday you'll own a Yamaha" advertising campaign. Premium pre-shrunk soft cotton t-shirt. Official licensed Product. Charcoal color, available in L, XL, and 2XL. Choose size and click add to cart
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Yamaha RD Shift Shaft Upgrade Kit - Includes: (This is the Original UK made kit, not the Chinese copy) - New CNC 6082 Billet Housing / PB1 Bronze Bushing - O-ring Seal Nitrile - Shift Shaft Seal - Acetal Shaft Sleeve - Easy to install, no mods required Though they have great transmissions, Yamaha 2 stroke twins aren't known as the best shifting bikes, and as they age shifting becomes even worse. The engine case opening for the shift shaft wears away causing the seal to fail, resulting in a constant oil leak, sloppy shifting, difficulty finding neutral, and missed shifts. Replacing the seal is just a temporary fix until it quickly fails again. This kit helps eliminate those issues. Economy Cycle tested for fitment/performance, highly recommended. You'll notice a difference in shfiting right away as the shaft/lever have much stronger support from the new bushing. The kit helps reduce miss shifts and revving to the moon, as well as making it a bit easier to find neutral. So sure, the kit eliminates the annoying oil leak with double sealing (by the O-ring and shaft seal), but to us as RD performance enthusiasts, this is a performance improvement allowing for precise and quick shifting. Great for street or race applications. Easy to install.
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We designed these new kits with RD enthusiasts in mind and includes the following specs / features
- Works with the engine in the frame (most dial gauges are too large and won't fit in the RD due to the frame rails sitting just above the heads)
- Metric Gauge - no need to convert from SAE and one less chance to make a mistake when converting
- Increments:
- 10mm stroke 1/100mm graduation
- Big hand sweeps 1 mm
- Smal hand in .10 mm increments
- 10, 12, & 14mm adapters makes this kit suitable for most 2 strokes
- 2 Extensions
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Ultra Sonic Carburetor Cleaning - Ultra Sonic cleaning is the most effective way to have your carbs cleaned. The carb bodies are immersed in a non-corrosive heated solution and treated with 40KHz sound pressure waves that clean 100% of all inner and outer surfaces and carb passages. This cleaning far exceeds normal carb cleaning with carb cleaner and wires which simply can't remove all the debris and residue as effectively an Ultra Sonic washer can becuase it cleans 100% of all surfaces. An ultrasonic cleaner works by the energy released from the collapse of millions of microscopic cavitations near the dirty surface. The bubbles made by cavitation collapse forming tiny jets directed at the surface removing varnish, debris, rust and other pollutants. Ultra sonic cleaning is also used for cleaning optic lenses, jewlery, watches, dental/surgical instruments, diving regulators and industrial parts, etc. Note: This price is for the cleaning itself and does not include labor for dis-assembly and rebuilding the carbs. Simply send us your carbs stripped down to the body or send us the carbs right off the bike and we will strip and rebuild them for you. If you choose to send in the entire carbs right off the bike, we will contact you after we receive the carbs with a complete estimate. Prices for dis-assembly and rebuild vary by carb type and the condition of the carbs. For example, a complete dis-assembly and ultrasonic cleaning of RD350/400 carbs x2 (non-Daytona) typically runs $75 per carb + parts. Price does not include return shipping. If you have any questions about this service or costs please feel free to contact us at 224-430-7971.
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Reproduction Neutral Switch & Seal Assembly RD/RZ/R5/DS6/7 all years, includes neutral switch, seal & 3 screws, part numbers below. We've had lots of requests for a less expensive alterntative. The plastic isn't as pretty white as the originals but this kit is half the price of OEM and the netural switch isn't a visible part.
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JIS Cross Head Bits (like Phillips but Japanese Industrial Standard for Japanese Motorcycles) - 1/4" standard shank works in most screwdrivers with interchangeable bits. Vintage japanese bolts are like butter to begin with and get buggered up over the years from using a standard phillps bit which doesn't fill the cross head bolt/screws properaly and often need replacing. Available in sizes #1,#2,#3
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520 Chain/Sprocket Conversion Kit for RD250/350/400. Each kit includes a  steel 520 countershaft sprocket with correct offset, 520 aluminum rear  sprocket and a high quality 520 roller chain made in Japan by DID and cut to the correct number of links for your model. We offer this kit for  the RD250/350/400 in the most popular street performance configuration.  The RD250/350 kit includes a 14T countershaft sprocket and a 39T rear  sprocket and chain. The RD400 (76-78) kit includes a 16T counter shaft sprocket  and a 39T rear sprocket and chain. The RD400F (1979) kit includes a 15T counter shaft sprocket  and a 37T rear sprocket and chain. Note: All 520 rear sprockets come  coated with Titan Tough coating which greatly increases the life of the  sprocket. This coating is black, similar to black anodizing . This is  the standard gearing for the RD250/350/400 with the front sprocket  lowered by 1 tooth for acceleration. Note: RD400 sprockets will require shimming. RD400 Shim kit available separately here on the site. Sprockets made in the USA, Chain  made in Japan. Choose model and click add to cart. Note: This kit does not work with a rear 120/80 tire (causes clearance and chain adjustment issues)
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The Cross over tube helps with mid range performance and helps to smooth power delivery, eliminate flat spots, stumble, bucking, etc. Most of the later Euro/Canadian RD400's and the RZ350 had this type of intake set up, but was never available in the USA for the RD's. This kit is a modified verion of the RZ350 intake and requires NO modifications of any kind and is a direct bolt on upgrade for the RD250/350/400 (all years). Rejetting may be required. Kit includes the following:
- OEM Yamaha RZ350 Manifolds x 2 (modified for the RD)
- OEM Yamaha RZ350 Manifold clamps x 2
- OEM Yamaha Banshee Cross over tube (metal) x 1
- OEM Yamaha RZ350 Cross over tube clamps x 2
- OEM Yamaha RZ350 Reed Valve gaskets x 2
- Stainless Steel Socket Head Bolt (Allen)/SS washer x 8
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Replacement Ignition Coil Kit - for Yamaha RD/R5/YDS6/7. Every thing you need to replace your coils, plug caps and ignition coil wires. Kit Includes the following:
- 2 Replacement Coils, same dimensions as stock coils, same bolt spacing. Easy to mount and install.
- 2 NGK Type 5K Resistor Spark Plug Caps
- 2 Feet of high quality Ignition Coil Wire
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Sale!
Bar End Cafe Style 3" Round Mirror Set (pair). Fits Yamaha RD/RZ and any bike with 7/8" handlebars. Vibration free rubber mounting with double ratchet stop adjustabiltiy. One of our most popular products includes one pair of mirrors Right/Left.
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Sale!
Vape CDIÂ Ignition and Charging System for the Yamaha RD250/350/400,R5, and DS7
(note: Vape was formerly Powerdynamo/MZB)
- Replaces the stock generator, points, condenser, coils and regulator found on the RD, R5 and DS7.
- This system includes a lightweight cnc machined one piece external magnetic rotor and powerful stator, CDI ignition and HT coil pack, regulator, plug wires and caps, misc hardware and installation instructions. (note: all new systems purchased include the updated rotor)
- This is the same type of ignition you would find on any modern motorcycle and gives you a high voltage spark and strong electrical output for lighting and charging. This is a maintenance free system, you will never need to check your timing or replace / adjust any parts as you would with contact points and condensers.
- We charge a bit more than other vendors for this system as we provide live technical support via phone - talk to a person.
- 24 Month Manufacturer’s Warranty.
- 35,000 Volt HT Ignition Coils
- Electrical output at 150W/12V allows you to run high wattage lights, halogen bulbs, and any accessories you like. Your horn, signals and headlight will be strong and bright even at idle.
- No changes, modifications or machining needed to install this system
- The system is capable of running without a battery.
- Very stable ignition with high energy spark for better starting and fuel efficiency
- Increases engine performance and lowers emissions
- Wasted spark system ensures easy starting
- This system is manufactured to exacting standards and all components and machining are top notch and of the highest quality. Just what you would expect from a German company.
- Manufactured by Vape, imported from Europe by Economy Cycle – an authorized US distributor.
- You will need a basic understanding of motorcycle electrical systems and basic mechanical knowledge to install the system, or you can have your own mechanic or local bike shop perform the installation. Economy Cycle can also install this system on your bike or motor.
- The system typically takes 3-4 hours to install.
- Note: requires puller tool for Vape Rotor/drum - available here Vape Puller Tool
- We recommend the hardware upgrade kit for this system - available here Vape Hardware Upgrade
- We also recommend a new generator wire grommet with this kit as the stock one will not be reuseable, avaiable here Wiring Grommet
- Kit includes a relay to allow you to use your stock ignition switch
- Some notes on keyway cutting and woodruff keys:
- This system does not require a keyway / woodruff key and allows you to run the static timing of your choice (typically RD’s and similar bikes run static timing in the range of 1.8-2.2 BTDC). Also if you intend to use a Zeeltronic ignition controller and dynamic ignition curve a keyed rotor timed in the typical range noted above will not allow the Zeeltronic ignition controller to work properly, additional info below.
- Cutting a keyway in the rotor/drum voids the warranty
- The original Yamaha keeway and woodruff key were not intended to be used with the Vape rotor/drum to keep from slipping and absorbing a shear load. They were designed to index timing and once a keeway is cut and woodruff key installed, your timing is fixed and cannot be changed, we don't recommend this modification for these reasons. Additional info from Vape/MZB/Powerdynamo here Vape Keyway Information
- Requires no battery or lead acid / MF type battery only, however you will need a battery if you intend to use the stock ignition switch and kill switch and Vape relay