Yamaha RD400 Parts - Yamaha RD250 Parts

Yamaha RD400 Parts - Yamaha RD250 Parts

Birth of Yamaha RD400

To continue in success and popularity of the "race developed" RD350, Yamaha in summer 1975 introduced a direct successor - the RD 400 series. Early Yamaha RD250 also continued with slight modification into the new era with most parts similar and identical to the new 1976 Yamaha RD400.


The new RD400 model was immediately branded as best of the RD series Yamaha built. It’s popularity was magnified by 1 year warranty with unlimited mileage provided by the Japanese manufacturer.


Both Yamaha RD 250 & Yamaha RD 400 have air-cooled twin parallel two stroke engines and autolube oil injection. In comparison to the RD350, the new RDs received: upgrade to the intake system, new reed valves, single piston disc front and rear brakes and cast wheels (wire spoke on 1976 Yamaha RD250). Yamaha RD 400 received a brand new 399cc rubber mounted engine that was free of vibrations. Both models had lots of chrome parts, lots of power and were made to last!


Yamaha RD 400 Improvements over time 

In 1978 CDI induction was introduced and foot pegs were placed above the exhaust pipes, which now had longer mufflers and thicker manifolds.


1979 the RD400 diversified to meet stricter emission legislation throughout North America. To commemorate Daytona racing stars Kenny Roberts and Mike Baldwin, the new model was named Daytona Special. The main differences between US and Canadian version was ignition system and modifications to carbs and exhaust system.


Nowadays both models are in a restoration boom, with motorcycle enthusiasts revamping their rusty barn finds into stunning Yamaha cafe racers and custom projects. To find an original RD400 is an equivalent of finding a treasure.


Yamaha RD400 Parts

Most of the original Yamaha RD250 Parts and Yamaha RD400 cafe racer parts are already discontinued. To fill in the gap and help keep these legendary motorbikes on the road, we decided to offer a whole range of quality reproductions of Yamaha RD 400 spare parts and RD250 parts.


We now have over one hundred Yamaha RD 250 & Yamaha RD 400 parts now in stock and keep adding more. If you can’t find the part you are looking for, please email us as we will do our best to source it out. We also offer FREE shipping for any order over 70 Euro.



For further information about Yamaha RD400 Daytona Special models and their history visit The Morocyclist Online.

The test drive review can be found on Trade Motorcycles.

There is also lots of help available from fellow motorcycle enthusiasts on the Aircooled RD Forum

1976 Yamaha RD 250 C1A2-001A6-001A0 / 1A4 / 1A6
1976 Yamaha RD 400 C  (1975 Yamaha RD 400 in US)1A3-0011A1-001A5 / 1A7
1977 Yamaha RD 250 D & RD 250 DX 1A2-00 (1N9 Germany) 1U2
1977 Yamaha RD 400 D & Yamaha RD 400 DX 1A3-101A1-001A7 / 1T7
1978 Yamaha RD 250 E1A2-22 (2R8)  
1978 Yamaha RD 400 E1A3-110 (2R9)1A1 
1979 Yamaha RD 250 F 1A2-43 (2T0 Germany, 2T1 - France) 2V3 / 2W3
1979 Yamaha RD 400 F (1979 RD 400 Daytona)1A3-333 (2T2 - France)2V0 (USA) / 2R9 (CAN)2V4 / 2W4
1980 Yamaha RD 400 G Daytona Special3J72V0 (USA) / 3J7 (CAN)3M3 / 3M4

If you require parts diagram or parts list for any above, please contact us.

Are you looking for parts for 1973-75 RD250 & RD350, RD350LCRD350 YPVSRD125 or RD200 ?


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131-81231-20 DS7 R5 RD Lubricator Felt

Quality reproduction lubricator felt for ignition points for Yamaha motorcycles. COMPATIBL..

€2.80 Ex Tax: €2.80

1977-80 RD250 RD400 Seat Damper Kit

This reproduction kit contains two rubber seat pads (1T4-24741-00), one centre seat damper (278-2711..

€18.90 €16.00 Ex Tax: €16.00

1A0-11162-02 (4pc) Cylinder Head Dampers RD250 RD400

Quality reproduction rubber cylinder head absorbers / barrel fin rubbers for Yamaha motorc..

€24.50 Ex Tax: €24.50

1A0-14169-00 Carburetor Cap for RD125, RD200, RD250 & RD400

Quality reproduction rubber carburettor cap /top boot for Yamaha motorcycles. It fits over carb..

€9.50 Ex Tax: €9.50

1A0-14453-01 RD250 RD400 Carb to Air Cleaner Joint

Quality reproduction rubber carburetor to air cleaner joint - intake rubber for Yamaha mo..

€21.50 Ex Tax: €21.50

1A0-21107-00 RD250 RD400 Tool Tray

Quality reproduction tool tray / tool box for Yamaha motorcycles.COMPATIBLE MODELS1976-79 RD250C /R..

€34.50 Ex Tax: €34.50

1A0-21518-00 FS1 RD XS Virago Cable Holder

Quality reproduction rubber cable holder (1A0-21518-00) for Yamaha motorcycles.COMPATIBLE MODELSFS1 ..

€3.75 Ex Tax: €3.75

1A0-21746-01 RD250 RD400 Battery Box Damper

Quality reproduction rubber battery damper for Yamaha motorcycles. Most models requir..

€3.00 Ex Tax: €3.00

1A0-27413-00 RD250 RD400 Front Footrest Cover

Quality reproduction front footrest rubber for Yamaha motorcycles. Two are required to refresh the l..

€10.00 Ex Tax: €10.00

1A0-83513-00 XS360 XS400 RD Tachometer Clock Damper

Quality reproduction rubber tachometer / speedometer clock damper for Yamaha motorcycles. ..

€12.20 Ex Tax: €12.20

1A0-83523-00 XS250 XS400 RD Tachometer Bracket Damper

Quality reproduction rubber tachometer / speedometer bracket damper for Yamaha motorcycles..

€3.00 Ex Tax: €3.00

1A0-84712-60 XS RD Rear Light Damper

Quality reproduction rubber of rear light damper for Yamaha motorcycles. It fits inside the rear lig..

€12.35 Ex Tax: €12.35

1A0-84721-60 Taillight Lens - XS250, XS360, XS500, RD250 & RD400

Reproduction lens for rear light / tail light for Yamaha motorcycles.Matching gasket also available&..

€14.75 Ex Tax: €14.75

1A0-84723-60 Rear Light Gasket - XS400, XS750, XS850, RD250 & RD400

Quality reproduction of rear light gasket for Yamaha motorcycles. It fits between the rear light len..

€7.20 Ex Tax: €7.20

1A1-14615-02 RD400 45mm Exhaust Pipe Joint

Quality reproduction exhaust to silencer joint for Yamaha RD400 motorcycles.This rubber connector co..

€19.20 Ex Tax: €19.20

1A1-15316-00 RD400 XS750 Engine/Exhaust Mounting Damper

Quality reproduction engine/exhaust mounting damper for Yamaha motorcycles. It insulates engine from..

€14.50 Ex Tax: €14.50