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About Eric A. Jones
Expertise
Lawnmower Repair . Certified Master Service Technician from B&S. Have 13 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.
Experience
Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. I received a scholarship from the Air Force and am currently pursuing another degree.
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You are here: Experts > Home/Garden > Home Appliances > Small Engines (Lawn Mowers, etc.) > Sears Weedwacker...again
Expert: Eric A. Jones
Date: 9/17/2008
Subject: Sears Weedwacker...again
Question
Sears model C944.517360 21cc/16" model
My Dad replaced the gas lines on this unit and it wouldn't stay running. Further investigation revealed the inside lines in the gas tank had rotted away too. I replaced the inside hoses too. It has 2 hoses in, one from the primer (bent tube)which I believe is the return line to the tank and just needs to be inside the tank. The other has about 4 inches of line inside and a filter on it. I removed the filter for now. I try priming the system but the gas will not pump through. I have taken the carb apart and cleaned anything I saw and it will not start at all now. Plug is clean and gas is good so I strongly suspect gasline/carb problems. What am I missing? Carb is the Zama model. Pumping primer does not bring gas through easily.
Thanks
Answer
I have not seen this problem on the Zama's but there is a check valve in the body of the housing. Is the check valve sticking?
Did you use an air compressor to blow through all the carb orfices?
The main fuel line with the filter on it connects to the fuel pump side of the carb. There will be a small filter screen just on the other side of the carb main fuel inlet to connect the main fuel line.
Is the primer bulb cracked? Normally a crack will only be visible when you depress the primer bulb.
Let me know.
Eric
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