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Part |
Description |
RCMUK Part No |
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R254 Basic Engine 
 
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206000003 |
£198.30 |
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R254 Engine Option Kit 
 
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2701000003 |
£76.59 |
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Comprising:
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Part Number
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Full Race Engine Tune: |
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£155.00 |
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Gas flow barrel and crankcase, transfer and inlet ports, modify exhaust timing, modify inlet timing, machine crank case to modify squish. Modify ignition timing. Fit new gaskets if required. 
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Machining and re-shaping of the exhaust port for increased exhaust timing |
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Machining of the crank case for correct squish clearance |
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Rear Rotor Conversion: |
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£105.00 |
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Modifications to standard engine include:
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Engine Parts |
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Crankcase 
 
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207000020 |
£51.95 |
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Cylinder 
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207000019 |
£37.69 |
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Cylinder
Kit 
 
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2701000001 |
£60.88 |
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Cylinder Cap |
207000018 |
£15.77 |
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Crank Assembly 
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207000007 |
£44.07 |
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The "R254" crank and connecting rod are manufactured from 20CrMo steel. The "R254" crank and connecting rod are designed for racing and will withstand the rigours of flat out, high rpm operation. The "R254" crank has the same internal dimensions as the Zenoah and utilises the same bearings (6001 series). However, the “R254” crank is a 4 bearing crank. This is less prone to flexing under racing conditions and makes the engine more durable and less prone to failure. The "R254" needle bearing size is bigger than the Zenoah. A greater bearing surface contact area makes the connecting rod assembly stronger and enables the “R254” engine to rev to 19,000rpm. |
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Bearing 6001C3 |
3703000003 |
£2.20 |
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Front Bearing 6001JRXLUU |
3703000004 |
£2.44 |
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Piston 
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207000023 |
£18.55 |
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Piston Ring |
207000025 |
£3.94 |
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Snap Ring R8 |
3702000001 |
£0.38 |
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Piston Pin 
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207000038 |
£1.86 |
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The "R254" piston pin has a 5mm thread in one end of the pin. This makes the pin very easy to remove. The other end of the pin is filled with Teflon. Weight: 7g, Material: 20CrMo |
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Needle Roller KT8 11 10 |
3704000001 |
£2.09 |
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Stainless Steel tuned pipe complete with water cooled manifold and O rings |
2541001 |
£112.50 |
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Gasket Set: Part Numbers
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£5.91 |
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Ignition Coil |
207000011 |
£22.38 |
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Source Coil |
207000010 |
£39.72 |
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Ignition Coil Mount |
207000022 |
£3.59 |
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Insulator Block 
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207000016 |
£4.75 |
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Source Coil Mount |
207000029 |
£23.77 |
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Wrist Pin Spacer |
207000012 |
£0.93 |
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Shim 0.1T |
207000036 |
£0.70 |
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Shim 0.2T |
207000037 |
£0.70 |
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Snap Ring C Type |
207000028 |
£0.57 |
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Woodruff Key |
207000024 |
£0.55 |
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Short Venturi |
204000009 |
£14.50 |
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Short Venturi S |
204000010 |
£10.44 |
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All prices are quoted in UK Pounds Sterling and may be subject to currency fluctuations. Prices will be confirmed at time of order.
Preferred method of payment
