craftsman 25cc blower revisited.


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Old 08-04-13, 05:29 PM
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craftsman 25cc blower revisited.

A couple months ago this wouldn't start. I posted here and got great help and it has ran fine until last week. Now, all it will do is idle, if I go off idle it stalls out. The low speed mixture screw works fine, very responsive when adjusting. The high speed one does not seem to do anything, I can run it to closed and about five turns out and it doesn't change. I am thinking there is something in it and will run some gumout through it tomorrow. Sound like I am on the right track? TIA
 
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Old 08-04-13, 11:26 PM
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Yup, sounds like there is something in the carb or possibly a crack in the fuel line or primer bulb.
 
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Old 08-08-13, 07:16 PM
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I took carb apart and ran gumout carb spray through every hole and orifice I could find. Still no luck. I have been reading on the Zama carb website, so far I have changed the incoming fuel line, checked the spark arrestor, and checked the metering level. It will idle fine but as soon as I hit the gas it stalls out. I thought it was leaning out but when I checked the plug it was wet. Have not changed the primer bulb or line yet. This thing is only a couple years old and the fuel lines are soft and pliable, not hard and dried out. Any other thoughts? TIA, TH
 
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Old 08-08-13, 08:03 PM
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Look into the throat of the carb when you hit the gas and it stalls. Does gas spray into the throat?
 
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Old 08-09-13, 10:36 PM
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Yes, it does. It spits it out into the air filter. I found a new carb online for $33. Wondering if it wouldn't just be easier to replace it? Or is this spitting gas out the back caused from something else? TIA, TH
 
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Old 08-10-13, 12:59 AM
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For $33 it's probably not worth the hassle of fighting the old one. Sounds like the check valve in the carb body is messed up, and that's not easily repaired on many carbs.
 
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Old 08-11-13, 09:12 AM
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I didn't think it was worth the aggravation to keep messing with it when i can get a new one for $33. Hopefully, that will cure it. I will post when i get the new one installed. Thanks again, TH
 
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Old 08-17-13, 08:54 PM
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I got the new carb yesterday and installed it today. Runs great, started on second pull. Wish I would have went this way to start with. Thanks again, TH
 
 

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