PGO BR-500 Service Manual page 214

H.V. coil
16 -Check the earth insulation of the primary
circuit
Measure between one of the primary terminals
and earth.
Primary-earth = Ω infinity (>1MΩ)
YESgo to 17 NO go to 19
17 -Check the secondary resistance.
Measure the resistance between one of the
primary terminals and the spark plug cable
output.
Primary-HV cable output = 3.1K?9%
YESgo to 18 NOgo to 19
18- The coil is conforming.
19 -Replace the coil
P.9-67
PGO BR-500 ENGINE