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Walbro wt141a carb question


Livetofish's Avatar
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02-11-12, 03:43 PM   #1  
Walbro wt141a carb question

I have an old craftsman leaf blower with the above carb that only runs with nearly full choke. It has been almost this bad since new. I cleaned the carb and it actually runs fine but I want to solve this situation once and for all. My question is how do I adjust the carb since it has only one screw that has a plastic cover that limits the adjustment to about a quarter turn. I assume pollution control? There are no high or low screws. Must I live with what I got or can I bend the metal lip that limits the one screws adjustment and improve anything? Just one of those things that drive me crazy. Thank you.

 
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02-11-12, 08:15 PM   #2  
First, go to the walbro site and check under the service/aftermarket tab for some great info about their carbs, the retainer is a EPA thing, pull it off or trim the stop(i didn't say that), late night, poor movie, great .....whatever. Have a good one. Geo
Welcome to walbro.com

 
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02-12-12, 03:38 AM   #3  
Thanks Geo. the service manual brought a lot of ideals to the table and rookie confusion. I will find a "way" to adjust the single screw on the carb but I'm not optimistic it will be enough to be able to open the choke. When I say it runs fine with the choke almost closed, I really mean almost closed. It is so critical a little to much open or closed it will not run. From reading the service manual my other thought is to adjust the metering lever. Don't know if I want go that far without the proper tools.

Maybe someone has some other thoughts? Thanks in advance.

 
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02-12-12, 07:58 AM   #4  
Update- I was able to adjust the single screw beyond its original intent and solve the problem. As I richened the screw (outward) I was able to continually open the choke. I was amazed. I did give it an off and on good test over a few hours and all went well. Hopefully the next time I need to use it my problem will not resurface.

Thanks again Geo.

 
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02-12-12, 09:32 AM   #5  
Success is a wonderful sound. Have a good one. Geo

 
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