Harley-Davidson actually used to make golf carts.
Harley-Davidson began manufacturing golf carts in 1963 when William “Willie G” Davidson joined the company. They began as three-wheel models and then expanded to four-wheel models, before Harley-Davidson sold the company in 1969 to American Machine and Foundry Company (AMF), which kept the Harley-Davidson name on the golf carts. AMF continued making golf carts under this name until 1982, when it sold the company to Columbia Par Car. Harley-Davidson golf carts have a number of different specs, based on year of production.
Engine Specs from 1963 to 1981
From the year 1963, when Harley-Davidson first started making golf carts, until it was sold from AMF to Columbia Par Car in 1981, there were exact engine specs for the gas-powered golf cart. It had a single-cylinder engine, which was two cycle, and a displacement of 245 cubic centimeters. The standard piston diameter of this golf cart was 2.739 inches, the piston fit in cylinder was .006 to .007 inches, the piston ring end gap was .007 to .017 inches and the piston ring side clearance was .002 to .004 inches.
Engine Specifications from 1982 to Present
After AMF sold the Harley-Davidson line of gold carts to Columbia Par Car in 1982, the specifications of the engine changed slightly. It was still a 245-cubic-centimeter, two-cycle, single-cylinder engine, but the piston specs changed. The standard piston diameter was 2.739 inches, the piston fit in cylinder was .004 to .005 inches, the piston ring end gap was .007 to .023 inches and the ring piston side clearance was .0025 to .0045 inches.
The fuel specs on both types of these Harley Davidson golf carts are almost identical, only with a few differences on the newer models. These golf carts both use high-quality, certified two-cycle golf cart oil called TCW-3, which should be mixed with low-octane gas. There should be 1 1/2 ounces of this oil mixed with 1 gallon of low-octane gas, for a correct ratio of 85-to-1. The Columbia carts with were manufactured after 1984 use an oil injection system.