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Small Engines (Lawn Mowers, etc.)/carburetor, Tecumseh TVS90
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Question
My push mower has a Tecumseh TVS90 3.2 HP 4 cycle engine. The engine starts and runs great for a few seconds if I spray starting fluid or gas into the carb, and then it shuts off. It appears that no gas is getting past the carb. The float bowl is full though. Do I need to replace the needle/seat? Also, the priming bulb seems to do nothing when I push it. Is that related to the problem? I ordered a carb repair kit.
Hello Harry:
If the Primer Bulb has A Pin Hole or is Dry Rotted the Engine cant Get Gas because it Draws Air through the Primer Bulb. Place a Piece of Duct Tape over the Bulb (make sure no air can be Drawn by the Tape) and Try to Start the Engine by Priming it the Way you have been. If it Starts and Continues to Run, then Replace the Bulb. If it Runs and Quits, then Overhaul the Carb and Replace the Bulb too. Blow all Ports and Passages Out with Compressed Air. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfully
John
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Answers by Expert:
John C. Bridgers Sr.
Expertise
Small Engine Service Center Co-Owner - ATVs, Mowers, Trimmers, Snow throwers, and Many Other Small Engine Operated Equipment. I can answer questions pertaining to Most Small Engines (Air and Water Cooled) and their Associated Equipment as well as Lawn and Garden Equipment, e.g. riders, tillers, trimmers, cement mixers, chainsaws, etc. I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.
Experience
I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.
Education/Credentials
Technical College for Gasoline and Diesel Engines. This was a Full Course on Complete Dis-assembly and Repair of ALL Components pertaining to Engines, Transmissions, Rear Ends, Electrical. I Found the Small Engines to be Interesting because they are Small and Simple.
Past/Present Clients
I have worked on small air/water cooled engines for 34 Years. I performed warranty work for Lowes of Wilson and other retailers in the area. I Own a Yard Maintenance and Certified Small Engine Repair Service Center.
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