Boring a Yamaha HS1 90cc Twin
In this video I show how I bore Yamaha's smallest twin. I go through setup, boring, honing, and clearances. Using the Jet milling machine. hondamotorcycles #motorcyclemaintenance #motorcyclerestoration #motorcyclerepair #dirtbike #machineshop #motorcyclemechanics #kawasakimotorcycles #suzukimotorcycles #yamahamotorcycles #dirtbike
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Boring Yamaha's smallest twin, HS1, 90cc twin
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