- Crankshaft dis-assembly
- Cleaned, measured and bead blasted
- New ProX rods
- New Bearings - inner, outer (Yamaha OEM bearings)
- New Small end, Big end bearings (ProX)
- New Thrust Washers
- New Pins
- Re-assembly and truing to factory specifications or better
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Yamaha RD350 OEM Crankshaft - Rebuilt with all original Yamaha bearings and ProX rod kits. We performed the following work on this crank and it is ready to install. We do offer a core credit of $100 if/when you return you're old (rebuildable) crankshaft to us. -
ProX Connecting Rod Kit - Yamaha RD250/350/R5/DS7 (all). Connecting Rod Kit by ProX, includes connecting rod, small end bearing, big end bearing, pin and thrustwashers. PROX Connecting Rod Kits are made out of the toughest alloys available today. O.E. specifications and tolerances are meticulously maintained, a guarantee for easy installation and trouble free performance. Sold each. Sample -
Reproduction Neutral Switch & Seal Assembly RD/RZ/R5/DS6/7 all years, includes neutral switch, seal & 3 screws, part numbers below. We've had lots of requests for a less expensive alterntative. The plastic isn't as pretty white as the originals but this kit is half the price of OEM and the netural switch isn't a visible part. -
ProX Connecting Rod Kit - Yamaha RD400 (all). Connecting Rod Kit by ProX, includes connecting rod, small end bearing, big end bearing, pin and thrustwashers. PROX Connecting Rod Kits are made out of the toughest alloys available today. O.E. specifications and tolerances are meticulously maintained, a guarantee for easy installation and trouble free performance. Sold each. Sample picture.
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ProX Piston Kits (Sold each). Yamaha RD350/400/RZ350/RD350LC/RD350YPVS (all years). Piston kits include piston, rings, pin and clips. ProX pistons are manufactured in Japan and are designed to meet or exceed OEM specifications. Available sizes are 64.0mm, 64.25mm, 64.50mm, 64.75mm, 65.0mm, 65.25mm, 65.5mm. Note: Use of these pistons in air cooled RD350/400 require modification of the piston skirt. We can perform this service for you. You can purchase the piston modification service here on the site under the piston category. Choose piston size, quantity and click add to cart. -
ProX Piston Ring Sets (ea) Yamaha RD350/400/RZ350/RD350LC/RD350YPVS (all years). Piston replacement ring sets for ProX pistons (sold each - enough for one piston). ProX pistons ring sets are manufactured in Japan and are designed to meet or exceed OEM specifications. Available sizes are 64.0mm,64.25mm,64.50mm,64.75mm,65.0mm,65.25mm,65.5mm. Choose ring size, quantity and click add to cart. -
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 -
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) -
Yamaha RD350/400/250 Oil Line Clamp. Genuine Yamaha OEM part. Sold each. In original black oil finish, no longer available from Yamaha. -
ProX Wrist Pin RD350/400 16x54mm -
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) -
ProX Piston Circlip (Sold in Pairs) -
Yamaha - RD250/350/400/R5/DS7 (all years) Wiseco Connecting Rod Big End Bearing. Sold each. 22x28x15.8 -
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. -
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. -
Wiseco Wrist Pin for Wiseco RD350/400 Pistons. 16mm/2.175" -
Wiseco Piston Circlips (pairs) -
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. -
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. -
Yamaha RD250 DS7 (all years) Connecting Rod Small End (wrist pin) Bearing by Wiseco B1016, sold each. -
Yamaha RD250/350/400/R5/DS7 (all years) Crank Pin. Sold each. -
Yamaha RD250/350/400/R5/DS7 (all years) Connecting Rod Thrust Washer. Sold each. -
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 -
Out of stock
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 -
Barnett High Performance Kevlar Clutch Kit RD350 RD400 RD250 R5. Includes Kevlar friction plates, steel drive plates, and heavy duty springs. High performance clutch kit for the Yamaha RD350. -
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Black plastic bolt head cap covers for metric socket head (allen) in sizes M8 or M6. Makes for a nice clean look. Sold each. These simply press in to the bolt head, easy to remove. note; Size M8 (for RZ handlebar risers and other M8 Allen head bolts), Size M6 (for RD/RZ engine case bolts and other M6 allen head head bolts) -
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. -
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 Ball - All RD's, R5, DS6/7 -
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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Crankcase Breather - Yamaha RD250/350/400/R5/RZ350. Orignial Yamaha OEM part no. 583-15371-00-00 -
Crankcase Breather - Yamaha RD250/350/400/R5/RZ350. Reproduction part replaces Yamaha part no. 583-15371-00-00 -
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. -
EBC Carbon Fiber Lined Impregnated Friction Disc Set for Yamaha Yamaha RD250/350/400, R5, DS6/7, RZ350- EBC Friction CKF Clutch Kit - CKF2279
- Clutch kit plates are carbon-fiber impregnated
- These tough clutch plates extend engine life, improve drive, increase the heat threshold of the clutch and improve rider feel
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EBC Carbon Fiber Lined Clutch Kit for Yamaha RD400 & RZ350 & Banshee. Includes steel plates, Carbon fiber lined friction plates and heavy dudt springs.- EBC DRCF Series Clutch Kit - DRCF43
- Heavy-duty clutch kit designed for hard use and race applications
- Feature carbon-fiber lined clutch friction plates, a full set of steel plates and heavy-duty clutch springs
- Ideal for use in 2-stroke performance applications
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EBC Clutch Friction Disc Set for Yamaha Yamaha RD250/350/400, R5, DS6/7, RZ. Includes 7 friction discs.Cork-based clutch material impregnated with aluminum particles to increase wear life and heat resistance. Highly compressed construction avoids swell and clutch drag, Ideal for general-purpose street performance. -
Sale!
EBC Clutch Kit for RD400 & RZ350. Includes steel plates, friction plates and springs. Featuring anti-swell friction plates, long lasting pin planished steel plates for better lube distribution and heavy duty clutch springs. Note packaging recently changed but same great clutch kit. -
Out of stock
EBC Heavy Duty Clutch Spring Kit for Yamaha RD250/RD350/R5/DS7. Set of 6 springs. -
ECON PERFORMANCE Heavy Duty Clutch Kit for the RD350/400/R5. Kit includes high performance FZR friction plates with wider friction face, Yamaha OEM steel plates, and heavy duty high performance clutch springs. This kit significantly upgrades the stock clutch and is suitable for long lasting street performance or high output racing engines. Unlike the Barnett, the lever pull with this kit isn't too stiff and is similar to stock, yet still provides maximum holding power. Easy installation, includes instructions. Note: You'll probably want to pick up a new clutch cover gasket to go with the kit, also sold here on the site in the gasket section. Note: RD400 Kit pictured. Note: The stock rubber cushion rings are not required with this clutch. Choose model then Click add to cart. -
Economy Oil Pump Block Off Plate Kit. Kit includes:Yamaha RD350/400/250/R5/DS7- Aluminum block off plate
- Yamaha oil pump gasket
- Stainless steel allen bolts and lock washers
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Exhaust springs by Moose Racing. Suitable for aftermarket exhaust / expansion chambers. Stainless Steel, sold in pairs. Available in multiple lenths (measurement is from hook to hook) 90MM fits most Yamaha RD/RZ applications. Choose length and click add to cart -
Expansion Chamber Silencers - Black Carbon Fiber or Stainless Steel, sold each. These work with Lomas expansion chambers, see dimensions below for other applictions Stainless dimensions: 250mm Long Weight = 592 grams Mounting = 3 each M6 on 38mm bolt circle Carbon Dimensions: 250mm Long Weight = 497 grams Mounting = 3 each M6 on 38mm bolt circle -
Fuel/Vent/Oil Line 1/8" id x 5' - Clear or Black. Polyurethene line can be used for fuel, oil or vent line. Sold in 1/8" (id)diameter x 5 feet, in clear or black. Does not harden or crack. Choose color and click add to cart. -
Yamaha RD400 / RD250D Ignition Cover- Replaces OEM number 1A0-15415-00-00, Fits on the original larger inner cover
- Reproduction Part, no longer available from Yamaha
- Cast Aluminum
- Applications: Yamaha RD400 1976- 1980 (all years worldwide) Yamaha RD250D, DX (Later Euro versions of the 250, **NOT FOR USA 250/351**)
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2 Stroke Oil Injector Nozzle - RD250/350/400 (carb oil injector nozzle). Economy Cycle reproduction item, no longer available from Yamaha. Sold each. -
2 Stroke Oil Injector Nozzle in Brass - RD250/350/400 (carb oil injector nozzle). Reproduction item, no longer available from Yamaha. Sold each. -
***Note: We cannot ship Lomas exhausts to Europe. To purchase Lomas pipes for Europe, please visit JL-exhausts.com***
JL (Jim Lomas) Expansion Chambers - Yamaha R5/RD350/76-77 RD400. Simply put, JL chambers are the best pipes available for your air cooled RD or R5. Available in mild steel or stainless steel with stainless or carbon fiber silencers. Excellent performance across the rev range and high quality craftsmanship, you won't be disappointed!
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Kickstand Relocation Kit by HVC - for bikes with modified exhuast/expansion chambers. Our kit accomplishes two things. It allows the stock side stand to be used with aftermarket exhaust and it takes out that terrible lean angle of the bike when it is resting on the side stand. This kit will work with any after market exhaust using your existing side stand on the following motorcycles:- Yamaha DS7/R5
- Yamaha RD250/RD350
- Yamaha RD400
- Yamaha RD400F
- Our steel bracket that has black oxide coating to prevent rusting
- A longer spring that is designed and manufactured just for this kit
- Hardware and a drill bit
Note: This item is not eligible for discount
