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  #1  
Old 07-27-2013, 10:58 AM
gmlm gmlm is offline
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Join Date: Jan 2010
Location: locust, nc
Posts: 112
stihl br600 that starts up and runs for about 60sec then dies like light switch

my br 600....starts fine and idles up to full throttle with no problem. about a minute later it turns off like you hit the switch. it doesnt seem to be a fuel problem because it doesnt choke out...it just turns right off.

it has a new spark plug, fuel filter, air filter, and coil ignition module....all done this week. didnt do anything to change the problem.

any help would be greatly appreciated....its got me boggled.
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  #2  
Old 07-27-2013, 12:17 PM
ricky86 ricky86 is offline
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Join Date: Aug 2008
Location: Monmouth Cty N.J.
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A bacpac is under load all the time, so it could very well be a fuel problem.
It's the next logical step. As for the module, was it losing spark when running? Although it's not the problem, check the valve lash when you have the shroud off. If you decide to repair the fuel system, it makes sense to replace carb and lines.
Unless you're going to landscaper it. (no explaination needed)
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  #3  
Old 07-27-2013, 02:56 PM
gmlm gmlm is offline
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@ricky86 ok...that is my next step then. ill order the carb now.... the blower is about 3 years old, so it definitely wont hurt changing it...i might even learn something.. thankyou for your help.
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  #4  
Old 09-29-2013, 11:48 PM
tigerepairdotcom tigerepairdotcom is offline
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Join Date: Sep 2013
Location: duluth, ga
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http://www.worldoftrainz.com/Downloa...s%20Manual.pdf Is the parts manual for br 600

Why do people change carbs rather than cleaning/rebuilding?

Also you need to check if it has spark when it dies.

If no spark then you are looking at coil issues.

There are shims under the coil that need to be present to not transfer heat into the coil if its getting too hot could be stopping spark.

Make sure your new coil has these shims UNDER THE COIL 4282 404 9300 is the PN see the diagram

If you have no spark after dying check for shims under coil

If shims are present replace coil

No shims Put washers (THEY ARE NOT METAL THEY ARE A HARD PLASTIC HEAT RESIST Materials)

If it sparks when it dies rebuild carb and replace fuel system components as necessary.
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Last edited by tigerepairdotcom; 09-29-2013 at 11:53 PM.
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  #5  
Old 09-29-2013, 11:55 PM
tigerepairdotcom tigerepairdotcom is offline
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Join Date: Sep 2013
Location: duluth, ga
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Quote:
Originally Posted by gmlm View Post
@ricky86 ok...that is my next step then. ill order the carb now.... the blower is about 3 years old, so it definitely wont hurt changing it...i might even learn something.. thankyou for your help.
It is very important for you to post your results once the problem is solved so that people will be able to reference a solution to their problem down the road. YEARS may go by and someone has the same problem PLEASE POST YOUR "IT WAS FIXED WITH x SOLUTION.
__________________
It is very important for you to post your results once the problem is solved so that people will be able to reference a solution to their problem down the road. YEARS may go by and someone has the same problem PLEASE POST YOUR "IT WAS FIXED WITH x SOLUTION.
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  #6  
Old 10-02-2013, 09:45 PM
ChuckPMi ChuckPMi is offline
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Join Date: Jun 2010
Location: Adrian, MI
Posts: 39
I have an FS350 doing the same thing with the same new parts as your machine except I also have a rebuilt carburetor. Just before it went out today I noticed that the fuel in the tank was churning. Maybe the churning gets worse and worse until at the 60 second or so point the intake line is no longer picking up adequate fuel. I don't know what is causing the churning unless the return fuel lines are picking up air because they are loose (they are old). Next step will be to replace them. I know a blower and a trimmer are different but the principles of operation should be the same. Check your tank and see if the fuel is sitting quietly or churning during the short run period.
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