Skip to main content
Collection, Preservation and Display of Old Lawn Mowers

JAP Model 4/3

Engine Name
JAP Model 4/2, 4/3, 5, 6 Type 1
Engine Maker
JAP
Engine Model
Model 4/3
Engine Type
4S
Bore
70
Stroke
75
Capacity
288
HP
3.5
Carb
Zenith 24T2
Points
0.015
Timing
25deg
Plug
Champion N8/KLG F50
Plug Gap
0.020/0.025