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MPPL - Penetrating Lube, Fogger, Starter Fluid. All-purpose penetrating lube also displaces water and provides rust and corrosion protection. Forms a protective film on metal and will not harm plastic or painted surfaces. Excellent fogging oil or starting fluid for 2-cycle or 4-cycle engines. Great for detecting intake air-leaks. 20 oz. cans, 15.5 oz. net weight.
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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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NGK Iridium Spark Plug RZ350. (BR8EIX Stock). 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 anti-corrosion qualities. Choose heat range, 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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Octane Boost by Maxima. Concentrated octane booster increases pump gas octane rating. Eliminates pre-detonation. Mix either with straight gas or with alcohol and nitrous mixtures. For 2- or 4-stroke engines. Cleans fuel delivery systems. Legal for all racing applications. Won't harm or discolor plastic gas tanks. Cleans fuel delivery systems. Each ounce of octane booster per gallon of gas raises octane rating by four points. 16 oz. bottle.
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Oil Drain Plug Gasket - RD250/350/400/R5/DS7. Aftermarket part, thick fiber gasket similar to OEM but at a reasonable price. Sold each, or packs of 5 or 10. Replaces Yamaha OEM part no. 4F4-14766-00-00
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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 RZ350 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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Yamaha RZ350 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 Includes the following seals: Main, Priming wheel, Shaft, Piston (includes 3 sizes) Indludes the following gaskets: Main Pump Body, Pump to Case, and Bleed screw Includes new proper JIS (Japanese Industrial Standard) screws for pump body and bleed screw Includes Economy Cycle Oil Pump Rebuild Guide Not Included: Plug for pumps without a priming wheel (later 400's & RZ350) These rarely need replacing, the rest of the kit will work with these type pumps Satisfaction guaranteed or your money back One year warranty against manufacturing defects
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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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Parts Unlimited Brake Lever in Black - RD250(75-77Disc)/RD350(all)/RD400(76-78)
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Parts Unlimited Brake Lever for Yamaha RZ350.
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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 Conventional Battery, stock replacement for Yamaha RZ350. 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.
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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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USB Programmer for PC/Laptop for use with Zeeltronic PCDI10V CDI for Yamaha RZ350. Includes USB adapter and cords for connection to computer/PCDI10V and easy to use software. Note: This item not eligible for discount or special promotions.
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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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Piston Pin Puller Tool. Removes pins from all sizes of pistons. Won't damage piston or connecting rod.
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PJ1 - Fast black gloss epoxy paint. Porcelain-hard epoxy black paint. Chip-resistant. Offers an extremely glossy finish. 11 oz. net weight can. Sold each. Note: Additional shipping charges apply to paint, calculated at check out. Cannot ship Internationally.
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PJ1 - Gloss black engine paint. Special urethane resin formula withstands spillage of strong solvents and additives and endures the most adverse conditions. Formulated for engine restoration and similar applications. Provides a tough and lasting finish. 11oz net weight. Note: Additional shipping charges apply to paint, calculated at check out. Cannot ship Internationally.
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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 - PROFESSIONAL BRAKE CLEANER - Cleans and degreases brakes quickly and easily. Improves performance and evaporates quickly. Will not harm painted surfaces. Environmentally friendly. 19.7 oz. can; sold each
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PJ1 - PROFESSIONAL CARB AND CHOKE CLEANER - Quickly cleans injectors, carburetors, choke linkages, thermostat accelerator linkages and other moving parts. Not harmful to rubber, vinyl or neoprene. 19.7 oz. can; sold each
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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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PJ16 Satin Black Engine Paint. 500 degree semi gloss corrosion resistant black paint protects finishes and prevents chipping. Ideal for use on engine cylinder and cases. 11oz net weight. Note: Additional shipping charges apply to paint, calculated at check out. Cannot ship Internationally.
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PJ1 SUPER CLEANER DEGREASER - Multi-appliction non-residue degreaser. Powerful solvents melt grease and grime away. Dries quickly. Compliant with California regulation. 19.7 fl. oz. can; sold each
