ronan
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I bought a jawa speedway engine recently for a project. The plan is to run it on petrol, while speedway bikes run on methanol which runs far cooler than petrol. The makers only cast small fins on the barrel and cylinder head, so if you run petrol the top end can get a bit too hot.
The plan is to weld on more finning to the existing fins, giving more surface area and hopefully letting the engine run at the right temp.
Anyone know what i might use for the extra fins ? Can i just use aluminium flat of the right thickness ?
The plan is to weld on more finning to the existing fins, giving more surface area and hopefully letting the engine run at the right temp.
Anyone know what i might use for the extra fins ? Can i just use aluminium flat of the right thickness ?