By 1937, all Harley-Davidson flathead engines had been equipped with dry-sump oil recirculation methods similar to the 1 introduced in the "Knucklehead" OHV motor. 6. Harley-Davidson reserves the best to amend the conditions of the Promotion or to withdraw the Marketing at any time if instances over and above https://harleydavidson30516.free-blogz.com/78558014/not-known-details-about-harley-davidson