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OM-173 413 Page 32
7-6. Overload Protection
Ref. ST-801 344 / Ref. ST-156 199-B / ST-801 320-A
Y Stop engine.
. When a fuse opens it usually in-
dicates a more serious prob-
lem exists. Contact a Factory
Authorized Service Agent.
1 Magnetic Shutdown
Switch MS1
2 Fuse F (See Parts List For
Rating)
Fuse F protects magnetic shut-
down switch MS1.
3 Throttle Solenoid Fuse F4
F4 protects the throttle solenoid
from overload on models with auto-
matic idle option.
Check fuses and replace if open.
Tools Needed:
1
2
3
7-7. Optional Spark Arrestor Inspection And Cleaning
ST-800 523 / Ref. ST-188 449
Y Stop engine and let cool.
1 Spark Arrestor
2 Cleanout Plug
Remove plug and remove any dirt
covering cleanout hole.
3 Exhaust Pipe
Start engine and run at idle speed to
blow out cleanout hole. If nothing
blows out of hole, briefly cover end
of exhaust pipe with fireproof
material.
Y Stop engine and let cool.
Reinstall cleanout plug.
Tools Needed:
3
2
1
3/8 in