Small Engines (Lawn Mowers, etc.)/Throttle Stuck


Hi I have Craftsman 2-cycle Chain saw Model # 358.350810 18" bar
When it turns on it does not idle the chain automatically starts turning. I can not press or depress the throttle switch. It seems stuck and will not allow me to depress it. What do you think the issue is? Thanks.

Either the throttle linkage is binding somewhere or the carburetor butterfly shaft is sticking.  I would remove the carb so you can dis-connect the throttle linkage.  Check the butterfly shaft to make sure the spring is closing it.  If the carb is fine then you know your linkage is binding somewhere.  Could be a bent link or something binding in the handle or trigger assembly.


Small Engines (Lawn Mowers, etc.)

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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 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.


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. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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