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Old 10-25-2012, 03:20 PM
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QuadRacer041 QuadRacer041 is offline
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Join Date: Jul 2003
Location: new jersey
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Leaf vac run issue

I have a Fradan leaf vac with a 18hp brigs engine. Just got it ready this past weekend and have noticed that it has a stumble when running. When you first start it up i turn off the choke and it will want to stall. I'll have to chycle the choke on and off a few times till it stays running. then once running it has a stumble no matter what throttle position i am in. I have replaced the air and fuel filters and sprayed carb cleaner into the carb with the air filter removed. It still does the same thing, I have looked at the plugs and they look normal, not covered in fuel.
Any ideas?
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Old 10-25-2012, 06:47 PM
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dutch1 dutch1 is offline
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It would appear that you have a main jet blockage. You will likely have to clean the carb. I'm assuming the engine is a briggs horizontal vanguard. Do you have engine numbers?

I'm not familiar with the unit you're working on so don't know how accessible the carb is. I've cleaned up several carbs on Billy Goat truck loaders and was able to do so without removing the carb.

You may want to do a search of this site--for some reason I recall that the issue has been covered before.
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Old 10-25-2012, 08:16 PM
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QuadRacer041 QuadRacer041 is offline
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Quote:
Originally Posted by dutch1 View Post
It would appear that you have a main jet blockage. You will likely have to clean the carb. I'm assuming the engine is a briggs horizontal vanguard. Do you have engine numbers?

I'm not familiar with the unit you're working on so don't know how accessible the carb is. I've cleaned up several carbs on Billy Goat truck loaders and was able to do so without removing the carb.

You may want to do a search of this site--for some reason I recall that the issue has been covered before.
The owners manual says vangaurd 350000/380000, that help?
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