Hawk DLX, 1300 mi., few issues

[Britt]

Originally Posted by Megadan

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There are no big bore "kits" out there. The closest you get is a CG300 Cylinder kit, which does exist with all gaskets, piston, etc. The CG300 has a 70mm bore, which when installed on a CG250, makes an actual 249cc engine. It does, however require machine work to actually be fitted to the engine.
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Is it just turning down the OD of the sleeve and then bolt it up, or are other parts/machining needed?