CN 300 upgrade big bore on LANCE 250 Buggy Install 1 of 2 This CN 250 engine is a Helix Honda clone found in the Kinroad 250 / Runmaster 250 / CN 250 based engines such as the Lance 250 Go Kart. We will show how to remove the old cylinder, install the new one, and then do a road test using the La...
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