Stihl SR 450 - Ignition System Troubleshooting

9SR 430, SR 450
3.2 Blower
Always switch off the engine before working on the blower.
Condition Cause Remedy
Blower does not blow Blower wheel loose Tighten down nut on blower wheel
firmly
Blower wheel blocked Clean blower housing
Blower wheel worn or too many
blades broken
Fit a new blower wheel