Basic Specs for twin cylinder, aluminum block,
flathead engines.

Basic Model
Series
Plug
Gap
Coil
Air Gap
Valve
Clearance
Torque
Specs
Intake Ex-
haust
Fly
wheel
Nut
Cyl
Head
Con
Rod
All .030" Mag-
netron
.008"-.012"
Points
.010"-.012"
Springs
Installed
.004"-.006"
Without
Springs
.006"-.008"
Springs
Installed
.007"-.009"
Without
Springs
.009"-.011"
150 ft
lbs
160
in lbs
190
in lbs