Description
Model Fit Guide
TS410 AZ
TS410
TS410Z
TS420A
TS 420Z
Stihl 4238-400-1302 (Old Part Number)
Stihl 4238-400-1307 (New Part Number)
Please note replacing the module would differ based on your unit, however the basic steps would be the same.
Remove the housing/covers from the unit
Remove the spark plug
Bind the cylinder
Remove the air filter cover and side cover
Remove the throttle cable from the carburetor
Disconnect the wires
Remove old ignition coil
Install new ignition coil
Reassemble and test the unit
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