Harley-Davidson 1927 model JD 1200 cc IOE combination frame # 2711 engine #27 JD 5163
Harley-Davidson used the OHV inlet, side valve exhaust concept till 1930, when the company chose the full side valve engine concept.
For 1927, no more than 3561 1000cc model J machines were sold; the 1200 cc JD was much more in demand with 9691 units leaving the factory.
Not surprisingly perhaps, as the price difference between these models was a mere $10.
1927 was the first year of the “wasted spark” distributorless ignition system using a circuit breaker and a single coil firing both spark plugs at once.
This well-restored combination comes complete with Johns-Manville speedometer.