Small Engines (Lawn Mowers, etc.)/Homelite line trimmers

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Question
I have problems with what seems to be the carbie in my Homelite liner trimmer Model FR 2020 UTS20788.
Notice only one adjustment screw , with blank pole adjacent, is this also a fixed adjustment screw.
Unit completely overhauled, new carbie kit, good spark etc.
Will start when needle screwed right out but wont run on or accelerate. Local mechanic suggested soaking metal carble (seals removed)in acetone to remove lacquer build up, done so but still won/t start.
Thinking of buying replacement carble but considering cost might be throwing good money after bad.
Unit hardly used no carbon build up and has good compression
any suggestions

Answer
Did you check to see if the o-ring on the back of the engine crankcase is sealing?  I have found these to leak.  A quick fix is to remove the back engine cover to access the o-ring, clean all the grease and oil from the housing and engine then seal with Permatex #2 non-hardening sealant.

Yes, the second blank pole is a fixed jet...very bad design but EPA forcing stricter emission controls so equipment manufacturers have to comply.

Eric

Small Engines (Lawn Mowers, etc.)

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Eric A. Jones

Expertise

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.

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. 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.

Education/Credentials
MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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