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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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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" Red - 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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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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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 seals, spring, circlip, 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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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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Sale!RD250/350 RIght Side Engine Cover Decal with metal backing plate and adhesive
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Yamaha Brake Caliper Seal Kit - RD250/350/400 (73-78) XS TX. Includes main seals, dust seals, and small seal used between caliper halves and seal grease. Each kit services one caliper. Note: Yamaha no longer supplies red rubber grease packets witht he seal kit. This vegetable based grease is applied to the seals and helps keep them from seaping. Red rubber grease used on the seals will not contaminate your brake fluid. You can purchase red rubber brake grease at most automotive parts shops; However, most of the time, you can just lube the seals with brake fluid when rebuilding, but if you have any seaping after the rebuild then apply the red rubber grease to them. Note: This kit includes the small square section seal that fits between the caliper halves.
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In-line Glass/Chrome Fuel Filter with replaceable element For 1/4" fuel line. 1-3/8" die-cast body.
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Genuine K&N Air Filter for Y-boot air-filter system and for use with stock RD350 Y-boot(without air-box), includes clamp. Lifetime guarantee. Standard 5" for R5/RD350/250/400. See part YA-0700 for use with stock RD350 air-box.
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Manifolds for 30-34mm Carbs(VM, TM, PWK, PJ) with Boost/Crossover holes. By UPP/Moose Racing, high quality material resistant to cracking or ripping, outperforms stock manifolds. Specifically formulated to resist harsh fuels (including methanol) and oils. 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). Perfect for use with boost bottle. Sold in pairs.
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Uni Air-Box Vents. Uni's foam filtered air vents increase the amount of air to the air filter for a better air supply and improved performance. The removable foam element may be cleaned and re-oiled for years of dependable service. For street, dirt and atv applications, 2 or 4 stroke motors. Re-jetting may be required depending on application and number of vents installed. Easy to install, simply drill hole in air box and press in. 6 air vents in a package.
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Yamaha RD250/350/400/R5/DS7 (all years) Upgraded Connecting Rod Big End Bearing. This flat caged silver plated big end bearing comes from the Suzuki RG500 Gamma, but is a perfect match for the Yamaha RD's and much stronger then the stock bearing. This bearing can be used with stock Yamaha rods or the ProX rods we sell here on the site. (sold each)
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Yamaha Reproduction Brake Caliper Seal Kit - RD250/350/400 (73-78) XS TX. Includes main seals, dust seals, and small seal used between caliper halves and seal grease. Each kit services one caliper.
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Yamaha RD400 (all) Engine Case Decal. Reproduction decal true to the original graphic. Orignials no longer avaiable from Yamaha. Sold each.
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Brake Caliper Rebuild Kit - RD400F Daytona (Front / Rear). High quality seals from K&L. Each kit contains seals to rebuild one caliper.
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Replacement element for our Glass/Chrome 1/4" fuel filter
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Manifolds for 36-40mm Carbs(VM, TM, PWK, PJ). Mfg'd by UPP, high quality polyurethane, outperforms stock manifolds. Carb side opening i.d. accomodates 43mm carb spigot. Includes manifold gaskets & clamps. (recommended for use with larger 36-40mm carbs on RD350/400 or RZ350 applications). Sold in pairs.
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UNI 2 Stage Pod Filter, for use on stock 28mm carbs found on Yamaha RD250/350/400s and RZ350s. 2 stage filter can be run oiled or dry. Can also be run oiled in single stage by removing outer sleeve.
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Yamaha Handlebar Control Set Decal RD250/350(all US). Replaces decals on right and left handlebar switches. Reproduction decal true to original graphic.
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Yamaha Handlebar Control Set Decal RD400(all). This is the correct decal set for USA RD400 1976-79 (C/D/E/F). Replaces decals on right and left handlebar switches. Reproduction decal true to original graphic.
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Yamaha RD350/400/R5 (all years) Connecting Rod Small End (wrist pin) Bearing (Yamaha OEM). Original Yamaha OEM Bearing. Current Yamaha part number 93310-216E1-00. Sold each.
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UNI Pod Filters for larger 30-38mm Carbs. Filter is available in single or dual stage with straight flange or angled flange. (note we recommend the single stage with angled flange for the best fit on the RD/RZ/R5)
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Yamaha Brake Caliper Decal (RD1973-1977) - Aluminum with adhesive backing. Originals no longer available from Yamaha. Sold each.
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Yamaha RD250 / DS7 (all years) Connecting Rod Small End (wrist pin) Bearing (Yamaha OEM). Original Yamaha OEM Bearing. Current Yamaha part number 93310-216L2-00. Sold each.
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Yamaha RD250 DS7 (all years) Connecting Rod Small End (wrist pin) Bearing by Wiseco B1016, sold each.
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Yamaha RD250/350/400/R5/DS7 (all years) Crank Pin. Sold each.
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Yamaha RD400 (76-79) RZ350, Banshee, XS650, Rear Master Cylinder Reservoir Cap 2KF-25852-50-00, Genuine Yamaha.
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Y-boot Adaptors for Larger Mikuni Carburetors
- Install a Y-boot Filter kit on your Yamaha RD with Larger Carburetors
- Increase performance by reducing turbulance generated from pod filters
- Adapts our Y-boot filter kit to fit the larger aftermarket Carbs with a 58mm inlet housing
- Mikuni VM30-34
- Mikuni TM32-34
- Includes 2 adaptors and 2 clamps
- Made from Aluminum. In Lincoln NE, USA
- Sold as a pair
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Yamaha RD250/350/400/R5/DS7 (all years) Connecting Rod Thrust Washer. Sold each.
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Yamaha RD350 (all) Gear Selector Decal. Reproduction decal true to original graphic.
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Yamaha RD400 (76-79) RZ350, Banshee, XS650, Rear Master Cylinder Reservoir 1A1-25894-01-00 Genuine Yamaha part.
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1975 RD250 & RD350 Warning & Small Decal Set Includes: 1 Battery Caution 1 RH Engine Case Decal 1 Caution Brake Lining 1 Front Brake Caliper 1 Gear Selector Decal
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Red rubber grease (RGR) is used for repair, assembly and conservation of hydraulic brake components, apply thinly and evenly to cylinder sleeves, pistons, pins and seals. RGR rubber grease is compatible with DOT3/4 and 5.1 brake fluids. Contains Liquilon®, which lubricates long after conventional greases have washed out. Water repellent. Stands up to extremely high temperatures.
