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Old 04-14-2012, 08:44 PM
greenfrog greenfrog is offline
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Location: Fort Wayne, IN
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Br 550 blower overrrun?

I have a Stihl BR 550 blower. When I hit the stop lever to shut it down it continues to sputter and run for a few seconds. Does anyone know how to fix this problem?
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Old 04-14-2012, 09:13 PM
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dutch1 dutch1 is offline
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Check the plug--if there is excessive carbon buildup on the plug, it may still be hot(similar to glowing embers) which may continue to support combustion after shut down.

If that is not the problem, try letting it idle a bit before shutting it off.
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Old 04-14-2012, 09:52 PM
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ed2hess ed2hess is online now
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Aint broke don't mess with it beyond the plug thing. Big engines shut down bett er from full throttle. Now if it is running backwards that is another matter and better get it fixed.
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Old 04-14-2012, 10:43 PM
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MowerMedic77 MowerMedic77 is offline
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Check for a sheared flywheel key, the BR500-550-600 will all run (not real well) with the key sheared. Your complaint is one of the signs....
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Old 04-14-2012, 11:03 PM
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Valk Valk is offline
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My 8001 has never shut off instantly when hitting the off-button at idle speed.
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Old 04-16-2012, 01:51 AM
bmc1025 bmc1025 is offline
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My BR600 sounds like it runs backwards for a few seconds when it is hot and I run 87 octane fuel. Running 93 it happens very rarely. Checking the plug for carbon deposits is a good idea. If it has carbon deposits it is very likely the piston and combustion chamber do also.
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