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Motorcycle LED Mulit-function Brake/Running/License Tail light. 34 LED tail lights, 2 LED license plate lights.
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Motorcycle Related Stickers - Variety 100 pack. Huge variety pack of various motorcylcle related brands, Yamaha, AGV, Bell, AMA, Aria, Simpson, K&N & dozens of others. Easy to paste and remove. Made from PVC.
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Genuine Mikuni Float Needle Valve Seat Washer for RD250/350/400/R5/DS7 & all VM(24-30mm) Carbs. Sold each.
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Neutral Switch Wire Grommet. Reproduction part, no longer available from Yamaha. Sold each.
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Need a solution for your original RD Headlight? We have one with a replaceable H4 Halogen Bulb. Click on details below and scroll down to descprition.
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NGK Iridium Spark Plug. The ultimate in the evolution of spark plug technology and performance from the industry leader. The iridium electrode is 25% smaller than a platinum electrode, and it’s just 1/4 the size of a conventional nickel electrode. Ultra-small-diameter center electrode reduces voltage requirement and extends ignition system life. New metal shell plating has enhanced anticorrosion qualities. BR8EIX Stock for RD400, BR8HIX stock for RD350. Choose spark plug, quantity and click add to cart.
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***NOTE*** Most non-resistor type spark plugs (B8HS, B8ES) have been discontinued by NGK, you can substitute resistor type spark plugs (BR8HS, BR8ES) without issue). The NGK Standard Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The Spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This Spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This Spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head. Choose spark plug and click add to cart.
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These O-rings are for RD350/400 heads that have been modified to accept O-rings (by Economy Cycle, SCR (Scott Clough Racing, or new DG heads. Sold each. Sample picture, color may vary. Sold each. Multiple sizes: #40 for modified stock heads #40 for Superior heads #39 for DG Heads
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Oil Injection Line Clip, 90468-02033-00 OEM Originals $6.99 each or Reproduction Clips - $1.95 each
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Oil lines grommet. Reproduction part no longer available from Yamaha. This part fits into the top of the engine cover and the oil feed/supply lines pass through it. Sold each.
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Yamaha RD350/400/250/R5/DS7 Oil Pump Grommet Blank. This is a solid plug with no openings for oil lines and is intended to be used on bikes that premix and do not use the oil pump or oil lines.
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Yamaha RD350/400/250/R5/DS7 Oil Pump Block Off Plate Kit. Kit includes:
- CNC aluminum block off plate
- Yamaha oil pump gasket
- Replacement engine case grommet block (solid, no openings for oil lines)
- Stainless steel allen bolts and lock washers
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Oil Pump Check Valve Nozzle - RD250/350/400/R5/DS. This is the nozzle on the pump (not the carb) that delivers 2 stroke oil to the oil line going to the carburetor. This part is fitted with a small spring and ball bearing to complete the check vavle. Each bike/pump has 2 of these.
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Oil Pump Housing Main Gaket - Yamaha RD350 RD400 RD250 R5 DS6/7 RZ350, sold each.
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Oil Pump Rebuild Kit RD250/350/400 R5/LC350/YDS6/7 & Most Yamaha Oil Pumps from the 60's,70's & 80's Comprehensive kit - includes seals, gaskets, and screws. Covers most vintage Yamaha Motorcycle Oil Pumps from the 60's,70's and 80's
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Oil Pump Rebuild Service includes the following:
- Pump completely disassembled & checked for wear
- Pump body and parts ultrasonically cleaned
- Pump body media / vapor blasted if needed
- Replacement of all seals/gaskets and check valve springs
- Reassemble pump and calibrate (shim) to spec
- Approximate turn around time - 2-3 weeks
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Oil Pump Shaft Plug (oil pump block off) - Yamaha RD350 RD400 RD250 R5 DS7 & others with auto lube pump delete/Pre-mix bikes. Use this seal plug instead of a block off kit (plate & gasket). This seal is installed on the inside of the engine cover. Easy to install. Replaces oil pump shaft seal, requires removal of oil pump drive shaft.
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Oil Pump Shaft Thrust Washer (steel) - Yamaha RD350 RD400 RD250 RZ350, sold each. 90201-08624-00
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Yamaha Oil Pump Shims OEM Sold each. - Available in .03mm .05mm .10mm Generic oil pump shims available in stainless .10mm
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Oil Pump Worm Gear Pin and spring set. These are the small springs and pins under the ring gear that often get lost and make the pump inoperable. These pins/springs work with all Yamaha oil pumps with the white priming wheel (and RD400's with or without priming wheel). When used as a set, this pin/spring combination is 1mm shorter than stock which makes them much easier to install and doesn't affect the operation of the pump. Sold as a set of 1 pin and 1 spring.
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Oil Tank Damper - Yamaha RD350 RD400 RD250 R5 DS6/7, sold each. Replaces part Yamaha part no. 437-21779-00-00 Note: One end of this part is capped
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Oil Tank Tube - Yamaha RD350 RD400 RD250 (all years). Reproduction part no longer available from Yamaha, replaces OEM # 360-21753-00. Sold each. *Note: To use this oil tank tube on the R5/DS7 you will need to purchase the matching cap and filler found here Oil Tank Cap and Filler
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Oil Tank View Glass - Yamaha R5 & DS7. Reproduction part no longer available from Yamaha. Replaces stock part no. 214-21761-00
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Oil Tank View Glass - Yamaha RD350 RD250 RD200 RD125. Reproduction part no longer available from Yamaha. Replaces stock part no. 360-21761-00.
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Out of stockVintage Japanese Style Tool Kit - metric took kit for vintage bikes, not specific to the RD but includes most common tools and sizes you'll need. Includes:
- Pliers
- Combo Screwdriver (straight blade / phillips)
- Spark Plug Wrench
- Wrenches, 8/10mm, 10/12mm, 14/17mm
- Pouch - fits nicely in the RD tool tray
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Parts Unlimited Conventional Battery, stock replacement for Yamaha R5, DS7 RD250/350/400. Parts Unlimited premium-quality. Parts Unlimited batteries are a high-quality, low-cost alternative to OEM battery replacement Built to the same exacting specifications and quality control standards as top brand-name Japanese batteries Rugged and reliable starting power for your machine **Batteries will ship via UPS - Provide a street address for shipping - UPS will not ship to a PO Box**. Battery does not include acid. *additional shipping costs apply to this item, calculated at checkout. When we're out of stock on this Parts Unlimited battery, we'll ship a Fire Power brand battery which has the same specifications and is comparable quality.
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Parts Unlimited Front Fork Seal Set for Yamaha RD200 All Years
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Parts Unlimited Front Fork Seal Set for Yamaha RD250/350/400 Note: 1979 RD400F uses FS-011
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Parts Unlimited Front Fork Seal Set for Yamaha RZ350/RD400F
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Parts+Plus Steering Stem Bearings. Tapered roller type for superior performance. Made in Japan. Compatible with RD250/350/400, RZ350, LC350 models. Note this product comes in 2 types of package branding (Parts+Plus and K&L) but is the same part/same manufacture.
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Pirelli Sport Demon Tires for your RD or RZ! Multiple Sizes Front/Rear
The front tire profile is designed to greatly improve handling with excellent water evacuation thanks to central sine-wave groove. The multiple-radius rear tire profile provides lighter and more precise handling and stability in all riding conditions with radial-like handling from bias-ply tires.
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Sale!Out of stock
One set remaining
Pirelli Sport Demon Tires for your RD or RZ!
CLOSE OUT SALE - Save $130+ on the set with free shipping now!
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PJ1 - High temp black exhaust paint. A heat and flame resistant flat black paint that resists chipping and rusting. Withstands temps up to 1500 degree F. 13oz net weight. Note: Additional shipping charges apply to paint, calculated at check out. Cannot ship Internationally.
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PJ1 CABLE LUBE - PJ1’s specially formulated cable lube frees up sticky cables, extending cable life. Easy-to-use formula stays around long after other lubes are gone. 16 fl. oz., 11 oz. net weight cans; sold each
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Fuel Rated Plastic T-Splitter 1/4"
- Use to route or repair fuel lines, oil lines and air lines
- Barbed ends provide a secure fit
- Made in the Germany
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Plastic Valve Stem Caps - Black (10-Pack). Standard black plastic valve stem caps, sold in packs of 10.
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Kit contains all the carb parts you need to perform the popular RD350 / RD400 carb mod. This modification is referred to as the Dave F carb mod and is used for bike with expansion chambers and performance air filter. Kit includes: 169PO Needle Jets x 2, 5DP7 Needles x 2, Main jets 180-220 x2, Pilot jets 27.5,30 x2, (1)5/64 Drill bit. Main jets/pilot jets included are the approximate range, your specific application may vary depending on engine modifications, intake, porting, etc. If you are unsure of correct jetting, seek tuning advice. You can download instructions for this modification at the below link. Instructions
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roX Piston Modification for Yamaha RD's. We perform the piston skirt modification and ship piston ready to install. Piston modification fees are non-refundable. Price per piston.
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ProX Top End Bearing - RZ350/LC350 (all) 16x21x22
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Quad Flow Torque Wings for RD's and RZ's (stock carbs) The Quad-Flow Torque Wing has horizontal and vertical air flow stabilizers which increase air flow, air speed and fuel atomization, thereby increasing performance. Install for maximum performance, then HANG ON! Note: This kit is for twin cylinder engines and includes 2 torque wings Increased power across the RPM range, awesome throttle response. Easy installation, no tuning required. Stainless steel construction, no moving parts.
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Quick Disconnect Fuel Coupling with dual shutoff in 1/4" or 5/16". When connected fuel will flow & when disconnected fuel will not flow from either side. Use Dual shut-off for fuel tanks equipped with a cross-over line. Capable of withstanding temperatures of -40 degrees F to 180 degrees F. These quick disconnect fittings utilize Nitrile (Buna N) o-rings and may not be compatible with some race fuels. Made in the U.S.A. Choose size and click add to cart. We recommend keeping as little slack as possible in the crossover line to keep the coupler up and away from the heat of the engine.
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Race Tech Fork Springs - RD250/350/R5/DS7 (all) & RD400 (76-78). Available in .70kg, .75kg and .80kg spring rates. Recommneded spring rates: Rider weight up to 150lbs - .70kg Rider weight 150-200lbs - .75kg Rider weight 200-250 - .80kg A High Performance Spring has a high stiffness to mass ratio. In other words, it is light weight for a particular rate. This requires the finest materials. And, of course, you want the specific rate you’re paying for. Most manufacturers hold rates within +/-5%, this means a spring marked 5.0 kg/mm could be a 4.75 or even 5.25. (A spring marked 5.0 could be the same rate as one marked 5.4!) Race Tech Springs have extremely accurate rates because we 100% test our springs. Chrome silicon, high stiffness to mass ratio, shot peened, heat treated and pre-set (no sacking). These are the finest springs available, period! Note: This part is not elidgeable for discount or promotion. Note: This product has additional shipping chargres.
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Race Tech Gold Valve Fork Emulators for RD250/350/R5/DS7 (all) & RD400 (76-78), sold in pairs.Damping rod forks are notorious for being both too harsh yet too easy to bottom. This is the nature of damping rod fixed orifice forks. In the past all that could be done to improve these forks was change spring rate, oil viscosity or damping hole size, until now. Cartridge Emulators make damping rod style forks perform like well-tuned cartridge forks. These tunable valves sit on top of the damping rods and are held in place by the main springs. This makes them both simple to install and completely tunable for all conditions and rider preferences. Track tests have consistently produce lap times that are 1 or more seconds a lap faster while Cruisers and Gold Wing owners rave at the increased control and ride quality. Note: This part is not elidgeable for discount or promotion.
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Racing Magnetic Oil Drain Plug for RD's/R5/DS7/RZ350. Also fits most Yamaha motorcycle from the 60's through the mid 80's. Magnetic oil drain plug collects metal particles and debris protecting your engine from damage. Includes washer.
- Predrilled holes for easy safety wiring
- Kit comes complete with pre drilled cap and locking clip already safety wired to a mounting tab
- Strong embedded magnet
- CNC from high quality aluminum
- Anodized in Black or Blue
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Genuine Yamaha Clutch Steel Plates for RD 250/350/R5/DS6/DS7 Clutch Steel Plates. Can be used with Vesrah clutch friction discs or stock Yamaha clutch friction discs. Sold Each
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Brand new fresh rubber carburetor boots for Yamaha RD350 and R5. Boots protect the carbs and cables from dust, dirt and moisture. These boots go on top of the carbs where the cable enters the slide. These are not the boots that connect the carbs to the air filter box. These are suitable for any round slide carb for street and dirt motorcycles. Sold in pairs.
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RD350 Yamaha OEM Bolt Kit. New Original Yamaha Bolts. All bolts required for left & right crankcase covers. Note: one bolt pictured, kit includes 19 bolts for right and left crankcase covers.
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RD400 Black Allen Engine Bolt Kit. 21 High quality black Allen (socket head) Bolts. All bolts required for left & right Crankcase covers. Also available in stainless Kit includes instructions for correct bolt length and location
