Honda PC50 Owner's Manual page 46

• ENGINE
Cylinder layout
Valve arrangement
Bore and stroke
^ Compression ratio
'Displacement
Carburetor
Oil capacity
,jt Lubrication
Reduction ratio
Primary
Secondary
Gear ratio
Clutch
44
Single cylinder, inclined 10°upfrom horizontal
Overhead valve
42X 35.6 mm (1.654x1.401 in)
8.5
49 cc (3.0 cu-in)
Side draft piston valve
0.75 lit, (1.6 U.S pt. 1.3 lmp-pt.)
Wet sump
3.000
1.933
3.214
Automatic, centrifugal wet shoe type