First test run of my 374cc six cylinder engine. I started making this engine in July 2017 from a pair of yamaha FZR250r engines. The crankshaft is completely remade from scratch and is pressed up using needle roller bearings for mains and big ends. I carried out all the work myself in my garage with minimal specialist tools or equipment. Next stage is to fit a radiator and run the engine up to operating temperature so I can set up the fuel air mixture.

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