- Upper / Lower Races
- Upper / Lower Caged Ball Bearings
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Caged Ball Bearing Steering Stem Bearing Kit for RD250/350/400/R5/RZ350/LC/TZ250/350. Simple replacement kit same dimensions as stock parts and no chasing ball bearings around the garage! Includes the following:
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Carb cleaner kit by K&L. Perfect for cleaning jets & carb passageways, 14 piece wire set with spiral knurling, comes in its own handy carrying case.
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Carb Top Boots - Yamaha 1979 RD400F Daytona. Theses are the accordion type rubber boots that go on top of the Daytona carbs. Sold in pairs, reproduction part. Originals no longer available from Yamaha. 2V0-14169-00-00
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Carbon Tech Reeds - Yamaha RD250/350/400. Carbon Fiber reeds by Carbon Tech. The latest in high tech reed technology. Available in low tension for stock to slightly modified engines and high tension for highly modified race engines. We recommend LT type for stock and street performance RD's with stock exhaust or expansion chambers with modified intake. HT type for high output / high revving racing applications. Note: Order 1 set for 1 motor, this is enough to do both cylinders. Sample image. Choose Reeds and click add to cart.
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Cabon Tech Reeds - Yamaha RZ350. Carbon Fiber reeds by Carbon Tech. The latest in high tech reed technology. Available in low tension for stock to slightly modified engines and high tension for highly modifed race engines. We recommend LT type for most street RZ's with stock exhaust and street pipes with modified intake. HT type for high output / high revving racing applications. Note: Order 1 set for 1 motor, this is enough to do both cylinders.
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Carburetor Boots - Carb to Airbox joint for Yamaha R5 and DS7. Exact replacement reproduction part no longer available from Yamaha. High quality rubber, fits R5 and DS7 (all years). Includes 2 replacement clamps and 2 replacement springs.
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Carburetor Boots - Carb to Airbox joint for RD400, RD250. Exact replacement reproduction part no longer available from Yamaha. High quality rubber, fits 1976-1978 RD250 and RD400. Replaces stock part no. 1A0-14453-01-00. Includes 4 replacement clamps. Note the 250 listed is the later Euro RD250 (looks like USA 400).
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Carburetor Needle Clip for VM, TM or TMX Mikuni carburetors. Sold each. BS32/126
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Tool Kit for Mikuni Carburetors. Kit includes variety of tools to service Mikuni carbs.
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Carburetor Top Cable Adjuster - Mikuni. For Mikuni VM carburetors. Sold each. Available in 6mm or 7mm (RD/RZ/R5). Note: 7mm does not include nut. Choose size and quantity, then click add to cart.
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Out of stockPhenol Novolac Epoxy Gas Tank Sealer by Caswell. Permanently Repairs Steel, Aluminum, Fiberglass and Plastic Gas Tanks. Phenol Novolac Epoxies are a new breed of chemical resistant materials, able to withstand permanent immersion of many harsh solvents, fuels and oils. This Epoxy has much better bond strength than single component products, with strengths of up to 3000 PSI. This higher strength reduces the need for a clinically clean surface, as the epoxy actually prefers to bond to a rough rusty surface. This 2 part epoxy sealer kit includes enough sealer to do 2 small or 1 large motorcycle fuel tank (more than enough needed to do an RD). This product has additional shipping charges. Kit comes with complete instructions.
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Ceramic High Performance Brake Pads Yamaha - RD350 RD400 RD250. These ceramic brake pads are suitable for street or race use. Also fits TX500,TX650,TX750,XS650. Our Advanced Ceramic Brake Pads are engineered to provide exceptional performance and reliability for your motorcycle. Made from a high-quality ceramic compound, these brake pads offer superior stopping power, reduced heat buildup, and smoother engagement.
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Chain - Yamaha RZ350 - DID High Performance 520 Chain for RZ350. DAI-HARD (DHA) SERIES NZ AND NZ3 NON O-RING CHAIN. D.I.D.’s professional high-performance non O-ring roller chain. DHA pin treatment – hard chromium-carbide layer formed on pin surface. Far better wear resistance than other chains. Up to 19% higher tensile strength. Increased anti-oxidation performance. Solid bushings, quad-riveted pins Note: This chain is 120 links long and must be cut for use on the RZ350 which requires a 106 link chain. Optional chain length modification service available, purchase here on on the site under the chain category.
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Chain Adjusters. Pair (R/L) Includes L/R chian adjusters with bolt and nut. These are reproductions of the originals, great for restorations, true to the original finish. Replaces Yamaha part number 168-25389-00-00 which superseeds to 12R-25389-00-00. See fitment below / details
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Chain Adjusters. Pair (R/L) Includes L/R chian adjusters with bolt and nut. These are reproductions of the originals, great for restorations, true to the original finish. Replaces Yamaha part number 168-25389-00-00 which superseeds to 12R-25389-00-00 and 168-25388-00-00 which superseeds to 1A1-25389-00-00. See fitment below / details Fitment: YR1, YR2, YR3. 1967-1969 R5 / DS7 1970-1972 RD250 / RD350 1973-1975 RD400 1976-1978 1978 US version only
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Chain length modification service by Economy Cycle. We will professionally modify any chain to your specified length/number of links. Simply choose the number of links you require. We do not simply cut the chain, the plates/pins (links) are removed and the chain will come ready to install. Choose number of lengths and click add to cart.
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Checkerboard Stripe Decal - 2" Wide x 36" Long. This checkerboard stripe is suitable for the top of a fuel tank, fender or helmet. The possiiblities are endless. Dimensions: 36" long X 2" wide. Clear laminate coated for added durabliltiy.
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VM28 Choke Lever Assembly - Genuine Mikuni. Includes 1x each the following parts / part numbers:
- Lever - 360-14175-00-00
- Nut - 278-14174-00-00
- Plate - 170-14178-00-00
- Choke Plunger - 278-14171-00-00
- Plunger Spring - 256-14135-00--00
- O-ring - 93220-09001-00-00
- Choke Plunger Cap - 802-14173-00-00
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Carburetor Choke Plunger by Mikuni for VM24-28mm carburetors. Sold each.
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Classic Vintage Style Tires. If you want a tire that replicates the original vintage look of OEM tires back in the 70's, this is about as close as it gets. Classic ribbed tread pattern on front, universal tread pattern on rear. Use of modern compounds and construction creates higher quality tire then OEM tires of the past at a very reasonable cost. S rated front tire for speeds up to 112MPH. Tire by Duro. Avaliable in the following sizes (note: any of these sizes will fit the RD250/350/400 (all years). Front: 3.0 x 18 (Ribbed pattern similar to original RD350) Universal Front/Rear: 3.5 x 18 (Universal Pattern - similar to original RD400) Rear: 4.0 x 18 (Universal pattern similar to original RD350)
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Clubman Bars in Gloss Black or Satin Black. Standard 7/8" bar size, steel
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Clutch Cable - RZ350 by Motion Pro. High quality cable meets or exceeds OEM standards. Sample picture, actual cable may vary.
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Clutch Holding Tool by Motion Pro. Made from medium carbon steel with hardened jaws to hold clutch hubs, flywheels, gears, sprockets, etc. Features 8mm spanner pins, Jaws open up to 5 inches wide, Recommended for square tooth style clutch hubs.
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GP style has stepped lever, also referred to as dog leg style. Makes for quick shifting and great for smaller hands.
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Clutch Lever - RD250/RD350(all)/RD400(76-78)/R5/DS7/RD125(all) - replacement clutch lever.
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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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Genuine Yamaha Clutch Lever for Yamaha RZ350. Black. Replaces 29L-83912-01-00
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Genuine Yamaha Clutch Lever for Yamaha RZ350. 29L-83912-01-00
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Clutch Push Rod - Yamaha RD250/350/400/R5/DS7. Choose model and click add to cart. RD250/350/400/R5/DS7
RD400
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Clutch Push Rod Adjuster Bolt/Nut - Yamaha RD250/350/400/R5/DS7 90113-08021-00 (includes bolt and jam nut)
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Ignition Coil Wire - for Yamaha RD/R5/YDS6/7 and other bikes. High quality replacemnt ignition coil wire for stock or aftermarket coils. Sold by the foot, quantiy = number of feet desired.
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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. OEM Yamaha part. See additional fitment below.
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Electrical Wire by Shindy - 14 Amp wire - 13ft - Multiple Color Choices. High quality electrical wire, suitable for most motorcycle wiring needs. Multiple colors / color combinations available. The mfg does not rate this wire in gauge size, but it is similar is size to 16/18 gauge. Sold in rolls of 13 feet each. Choose color and quantity, then click add to cart.
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Complete Gasket Set for 1979 Yamaha RD400F Daytona. High quality gaskets, made in the USA by Cleveland Gasket. 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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Continental Classic Attack Radial Tires for your RD or RZ! Multiple Sizes Front/Rear. See details for sizes
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Crampbuster cruise assist. Let the weight of your hand do the work of holding the throttle open while you ride. Relief from numbness and cramps. Slips on in seconds, no tools required.
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Crankcase Breather - Yamaha RD250/350/400/R5/RZ350. Orignial Yamaha OEM part no. 583-15371-00-00
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Crankcase Breather - Yamaha RD250/350/400/R5/RZ350. Reproduction part replaces Yamaha part no. 583-15371-00-00
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Crossover Tube (for manifolds with female boost openings for crossover tube or boost bottle) in Black or Silver finish
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Degree Wheel by Motion Pro. Manufactured from .052 thick aluminum with a 6.75 outside diameter and a 6mm center hole. Black anodized finish with easy-to-read numbers. Check or set ignition and/or cam timing. Can be used on 2- and 4-stroke engines.
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Exhaust flange Set for DG Expansion Chambers by DG, Sold in pairs with springs for the Yamaha RD350 (all years) and RD400 (1976-1978). Note: picture is RD400 flanges, RD350 flanges basically the same with slightly smaller diameter. Choose model and click add to cart.
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DG Performance Exhaust for 1984-85 RZ350. Great quality and performance, up to 13+ HP throughout the rev range. Aluminum construction 10 pounds lighter than stock. Includes 2 exhaust pipes, aluminum silencers, flanges, springs and all hardware needed for installation.
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DG Expansion Chambers Performance Exhausut for RD350 All Years and RD400 1976-1978. 13+/- hp increase, 10 pound weight reduction and bolt on easily. Steel construciton. Requires re-jetting of carburetors and new exhaust gaskets. Jets and exhaust gaskets are available here on the website.
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DID ERT3 (supersedes ERT2) 520 Race Chain - Yamaha RZ350 and RD 520 Conversion - Gold. High-performance, lightweight, low-friction chains designed exclusively for racing. This is basically the same chain as the older ERT2, but now with larger and stronger pins. Pins for ER chains are put through a special patented heat-treatment process that is 1.5 times harder than conventional carbon heat treating. Provides the highest wear resistance, tensile strength and impact resistance available. ER chain used by top motocross OEM works teams. Distinctive gold-plated finish. This chain can also be used for the 520 conversion on RD's. Note: This chain is 120 links long and must be cut for use on the RZ350 which requires a 106 link chain. The stock RD250/350 requires the chain to be modified to 92 links, and 96 links for the RD400. Optional chain length modification service available, purchase here on on the site under the chain category.
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DID Standard Series 520 roller chain. Available in multiple lengths. This is an excellent medium grade chain, pre-stretched, anti-kink design, includes clip style master link. This chain is used on the RZ350 and for the RD250/350/400/R5 520 Conversion. Made in Japan. Choose Length and add to cart. Length for reference: R5/RD350/RD250 - 92 Links RD400 - 96 Links RZ350 - 106 Links (This chain is only available in 110 links, we can cut this to 106L for you by choosing this option Chain Length Modification
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DID Standard Series 530 Chain - Yamaha RD250/350/400. Made in Japan. High quality solid roller chain. This is our mid-grade chain, great OEM replacement and the best you can get without going to an O-ring type chain. Pre-stretched, anti-kink design. Recommended specifically for bikes not originally equipped with O-ring chains. Includes clip styoe master link. Note: this chain comes in 100 links, the stock RD250/350 requires the chain to be modified to 92 links, and 96 links for the RD400. Optional chain length modification service available, purchase here on on the site under the chain category.
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Digital Calipers with metric to SAE converion & case by Performance Tool. Measures outside, inside, depth and step. 0-6 range (0-150mm) with SAE to metric conversion. Large, easy-to-read LCD display. Zero setting at any position within measuring range. Data output socket for interface with computer or printer. Thumbwheel with lock. On/off switch. Chrome satin finish with fine engraved markings. Heavy-duty plastic case keeps caliper safe and clean. Battery included.
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Dual Digital EGT Gauges with Warning/Record and fast reacting probe. Displays exhaust temperature for two cylinders. Comes as complete kit with fast reacting probes and clamp on mounting hardware. Max temperature setting is adjustable and display turns from blue to red when reached as warning. Automatically records max temperature reached. Easy installation with instructions. 12V dual gauge with probes & mounting hardware by Koso North America. Replacement probes/hardware available.
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Dipstick O-ring Yamaha RD250/RD350/RD400 (all years). Buna O-ring, safe for motor oil and crankcase temperature.
