Re: what are exhaust springs for?
To hold the exhaust pipe to the exhaust flange. Like alot of off road motorcycle the pipe is not attached directly to the cylinder, rather a flange is bolted on to the cylinder exhaust port, with a short protruding piece of pipe, and the exhaust is slipped over that pipe, and held tight against the cylinder flange with springs. The benefit would be that the pipe is less likely to break from vibrations
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48cc Grubee Starfire Round Head......