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Yamaha RD400(76-78) Gauge Face Decals (Tach/Speedo). Reproduction decal true to original graphic. Must be applied over original gauge face and will eluminate like original gauges. Removal of original is required as well as dis-assembly of tach/speedo to access gauge face.
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520 Counter Shaft Sprocket. This sprocket is used to convert the standard 530 pitch chain to 520 and includes correct offset. High-quality steel sprocket made in the USA. Available for the RD250/350 in sizes from 11-20 Teeth. Available for the RD400 in sizes from 11-18 teeth.
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Complete engine gasket set for Yamaha RD250/350/R5 (all years) by Athena. Note: RD250 requires different head gaskets, also sold here on the site. Gasket set includes the following: Head gasket x 2 Base gasket x 2 Manifold (reed cage) gaskets x 2 Exhaust gaskets x 2 Right Crankcase cover gasket x 1
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Clutch Lever - RD250/RD350(all)/RD400(76-78)/R5/DS7/RD125(all) - replacement clutch lever by Parts Unlimited.
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Damper Washer for Chain Guard. RD350 RD400 RD250 R5 DS6/7. This is the special shaped metal washer (squared edge) used with the rubber chain guard grommet sold here on the site. High quality reproduction part no longer available from Yamaha. Replaces Yamaha part no. 90209-06034-00
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DOT 4 Synthetic High Temp Racing Brake Fluid by Maxima. 500ml/16.9oz bottle.
- Synthetic, zero-fade racing brake fluid designed to ensure maximum stopping power and protection for critical brake system components under the most extreme racing conditions
- Extensively developed formulation maintains unparalleled responsiveness and performance by preventing water contamination and vaporization in any environment
- Advanced chemistry resists oxidation under excessive temperature, prevents corrosion and is compatible with SBR and EPDM rubbers
- Extremely high boiling point, over 600 degrees
- High temperature additive system
- Anti-vapor lock formulation
- Mixes with other DOT 3 and DOT 4 brake fluids
- Exceeds US FMVSS 116 DOT 3 & DOT 4, SAE J1703 and SAE J1704
- Do not use in DOT 5 silicone brake systems or mix with silicone based fluids
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Uni Y-Boot Filter System for RD250/350/400/R5/DS7 & RZ350. Includes genuine Uni foam filter, New reproduction Y-boot, pvc filter support ring, clamps & hardware for mounting. Also available in low profile with a 4" Uni filter.
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Float Bowl Gasket for RD250/350/400. Reproduction gasket.
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High Flow In-line Fuel Filter. For 1/4" fuel lines. High-impact nylon housing, sonically welded for no-leak, no-break performance. Gravity flow rate of 7.6 gallons per hour compared to typical in-line filters with 2 to 4.5 gallons per hour.
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These manifolds, manufactured by UPP/Moose, are crafted from durable polyurethane material that outperforms stock manifolds. Designed to accommodate carburetors with a 35mm spigot opening, they are ideal for use with stock 28mm carbs on RD350/400 or RZ350 applications. Additionally, these manifolds feature boost/crossover holes, making them perfect for use with a boost bottle or crossover tube.
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Parts Unlimited Brake Lever in Black - RD250(75-77Disc)/RD350(all)/RD400(76-78)
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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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Uni Foam Air Filter Care Kit. Includes spray oil and cleaner. For use on all foam type filters.
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Yamaha Neutral Switch & Seal Assembly RD/RZ/R5/DS6/7 all years. Yamaha Part, includes cover, seal & 3 screws, part numbers below. 1L9-82540-00-00 x 1 93210-29196-00 x 1 98707-05012-00 x 3
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Yamaha RD250/350/400/R5/DS7 (all years) Crankshaft Bearing - Outer (Yamaha OEM). Original Yamaha OEM Bearing. Current Yamaha part number 93306-30549-00. Sold each (crankshaft requires 2)
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Yamaha RD400 (all years including Daytona) Rear Master Cylinder Rebuild Kit. Includes main piston seal, spring with cap, circlip, and dust boot, all the wearable parts that need to be replaced when rebuilding the master cylinder. Yamaha stopped making the rebuild kits several years ago and the aftermarket kits had fitment issues and were also recently discontinued, so we decided to produce our own kit. We have tested the parts in this kit for fitment and performance. Note this kit is assembled with OEM parts.
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Yamaha RD400F Daytona Gauge Face Decals for Speedometer and Tachometer. Reproduction decal true to original graphic. Must be applied over original gauge face and will eluminate like original gauges. Removal of original is required as well as dis-assembly of tach/speedo to acess gauge face.
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Anodized Aluminum Fuel Filter. Sold each. Available in Red, Blue, Black, Purple and Gold. Available in 1/4" or 5/16". CNC machined aluminum outer case with cleanable brass filter element inside. Choose size, then color and quantity and click add to cart.
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Complete engine gasket set for Yamaha RD400 (1976-78) by Athena. Gasket set includes the following: Head gasket x 2 Base gasket x 2 Exhaust gaskets x 2 Right Crankcase cover gasket x 1 Oil pump cover gasket x 1 Clutch actuator cover gasket x 1 Points cover gasket x 1 Note: Does not include reed cage gaskets
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Collar for Chain Guard. RD350 RD400 RD250 R5 DS6/7. This is the metal washer that goes inside the rubber chain guard damper. High quality reproduction part. See additional fitment below.
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Complete Gasket Set for 1979 Yamaha RD400F Daytona. High quality gaskets, made in the USA Gasket set includes the following:
- One piece Head gasket x 1
- Base gasket x 2
- Exhaust gasket x 2
- Generator cover gasket x 1
- Clutch adjuster cover gasket x 1
- Right Crankcase cover gasket x 1
- Oil Pump cover gasket x 1
- Manifold (reed cage) gaskets x 2
- Actuator gasket x 1
- Oil pump gasket
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Float Bowl Drain Washer (gasket) for VM28mm Roundslide carburetors - RD350/RD250/R5 (all) Sold each. Genuine Mikuni
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Uni Y-Boot Filter System for RD250/350/400/R5/DS7. Includes Genuine 5" Uni foam filter, Genuine OEM Yamaha Y-boot, pvc filter support ring, clamps & hardware for mounting. Also available in low profile with a 4" Uni filter. The difference between this and the less expensive version is the rubber boot itself, this version uses a genuine Yamaha rubber boot.
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RD400 520 Conversion Shim Kit. Shim kit includes shims for front and rear sprockets used in our 520 conversion sprocket/chain kits for the RD400. Choose model and click add to cart
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RD400F Daytona - Polished Brake Lever by Motion Pro.
- Polished aluminum finish
- Quality Aircraft grade A-360 aluminum for strength & durability
- Designed to exceed OEM specifications, built to resist breakage
- Durable hard coating
- Designed to fit OEM perch
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RD400F Daytona - Polished Clutch Lever by Motion Pro.
- Polished aluminum finish
- Brass bushing in lever for effortless operation
- Quality Aircraft grade A-360 aluminum for strength & durability
- Designed to exceed OEM specifications, built to resist breakage
- Durable hard coating
- Designed to fit OEM perch
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Yamaha RD400 (all years including Daytona) Rear Master Cylinder Rebuild Kit. This reproduction kit is assembled with high quality seals and includes main piston seal, spring with cap, circlip, dust boot, and banjo bolt washers, all the wearable parts that need to be replaced when rebuilding the master cylinder. Yamaha stopped making the rebuild kits several years ago and the other aftermarket kits had fitment issues, and were also recently discontinued, so we decided to produce our own aftermarket kit. We have tested the parts in this kit for fitment and performance. See here for alternative kit made with OEM seals RD400 Rear MC kit - OEM
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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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Yamaha RD250/350/400/R5/DS7 (all years) Crankshaft Bearing - Inner (Yamaha OEM). Original Yamaha OEM Bearing. Current Yamaha part number 93306-20621-00. Sold each (crankshaft requires 2)
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Yamaha RD400(76-78) Gauge Face Decals (Tach/Speedo) - White. Reproduction decal true to original graphics. Must be applied over original gauge face and will eluminate like original gauges. Removal of original is required as well as dis-assembly of tach/speedo to access gauge face.
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Yamaha RD400F Daytona Reproduction Head Gasket - replaces OEM 2V0-11181-10-00. Made in the USA.
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Anodized Aluminum Fuel Filter. Sold each. Available in Black, Chrome, in 1/4" or 5/16". Premium-quality, high-strength anodized alloy case with replaceable bronze filter element and gasket (link below). Replacement element available here on the website: Fuel Filter Element by Russell Choose size, then color and quantity and click add to cart.
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Sale!Anodized Aluminum Fuel Filter by Russell - Close Out - 1/4" Silver - ONLY 1 AVAILABLE. Premium-quality, high-strength anodized alloy case with replaceable bronze filter element and gasket (link below). Replacement element available here on the website: Fuel Filter Element by Russell
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Manifold for Yamaha R5 and DS7. For stock Mikuni spigot mount carbs. 60mm center to center bolt hole spacing. Includes clamp. Sold Each. Genuine Mikuni.
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Genuine Uni Air Filter for Y-boot air-filter system and for use with stock RD350 Y-boot(without air-box), includes clamp. Lifetime guarantee. Filter available in standard 5" for R5/RD350/400 and low profile 4"
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Uni Universal Bulk Filter Foam - Multiple Densities. Sheets of filter foam in several densities for fabricating air filters Perfect for vintage and custom applications.
- Green Extra Fine Foam 65PPI - 12"x16" x 5/8"
- Black Fine Foam 60PPI - 12"x16" x 3/8"
- Red Coarse Foam 40PPI - 12"x16" x 5/8"
- Black Extra Coarse Foam 30PPI - 12"x24" x 5/8"
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Yamaha - RD250/350/400/R5/DS7 (all years) Wiseco Connecting Rod Big End Bearing. Sold each. 22x28x15.8
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Yamaha OEM Piston Circlip (Sold each). 93450-17025-00
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Yamaha RD250 Piston Pin (Sold each) 280-11633-00- 00. OEM original part.
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Sale!Yamaha RD250 RD350 Left Engine Side Cover Decal, Reproduction of part no. 360-15425-01-00. Thick vinyl reproduction decal with aluminum backing plate and 3M adhesive backing, convex shape like original, includes thin layer of plastic protection of the front side (remove when installed). Position carefully, can only be installed once.
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Yamaha RD250/350/400/R5/DS7 (all years) Connecting Rod Big End Bearing (Yamaha OEM) Original Yamaha OEM Bearing. Current Yamaha part number 93310-422C8-00. Sold each.
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Yamaha RD400F Daytona Front Master Cylinder Rebuild Kit. 14mm. Includes seal, spring, cap, circlip, 2 banjo bolt washers and dust boot. This kit includes the piston seal that is unique to the Daytona 400F and different from the earlier 400's. This kit does not include the piston.
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Yamaha RD400F Daytona Reproduction Exhaust Valve Gasket - replaces OEM 2V0-14613-10-00. Made in the USA.
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Y-Boot Filter System for RD250/350/400/R5/DS7. Includes genuine K&N filter, Genuine Yamaha Y-boot, pvc filter support ring, clamps & hardware for mounting. Y-Boot Filter System for RD250/350/400/R5/DS7. Includes genuine K&N filter, Genuine Yamaha Y-boot, pvc filter support ring, clamps & hardware for mounting.
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Manifolds for 30-34mm Carbs(VM, TM, PWK, PJ). Mfg'd by UPP, high quality polyurethane, outperforms stock manifolds. Carb side opening i.d. accomodates 40mm carb spigot. Includes manifold gaskets & clamps. (recommended for use with larger 34mm carbs on RD350/400 or RZ350 applications). Sold in pairs.
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RD250/350 RIght Side Engine Cover Decal with metal backing plate and adhesive
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Complete top end engine gasket set for Yamaha RD400 (1976-1978). Includes head gaskets, base gaskets, manifold gaskets and exhaust gaskets.
