Small Engines (Lawn Mowers, etc.)/briggs and stratton engine

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Question
hi, i have a briggs and stratton engine model 287707 type 0224-01 on an mtd riding mower. (14.5hp ohv). i cannot get the engine to run, i adjusted the valves (correctly), i bought a new battery, i checked the fuel (smells and looks fresh). fuel is getting into the carb. when i try to start the mower it cranks HARD. i take out the spark plug and bam quick spinning. i even loosened the valves at one point just to see if it would spin fast with the plug in and it would not. im at a lose right now with how to figure this out.

Answer
Sounds like a definite valve adjustment issue, or the internal compression release. Loosening the valves will only make the issue worse, for the exhaust valve must be adjusted correctly to allow the compression release system to work due to the fact it allows the exhaust valve to to stay open a bit at starting to lower the cylinders starting compression. Are you sure when you adjusted the valves to factory specs you were directly on top dead center of the compression stroke, or perhaps 180 off on the exhaust stroke?..........Tom

Small Engines (Lawn Mowers, etc.)

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Tom Adinolfi

Expertise

Can, and will, answer most questions pertaining to small engine repair, and service. But PLEASE furnish me with the proper Model numbers, and types to assure me to be able to answer your questions the most accurately as possible. If the problem is dealing with the frame, drive, or deck portion I need the manufactures numbers, if it is the engine itself, I need it's make and model numbers, rather than the frame's. Tom

Experience

Briggs & Stratton authorized dealer owned repair shop in Dayton, Ohio. 20+ years in small engine repair. and service. Experienced in most makes, and models. Factory schooled in Briggs & Stratton. Honda, MTD, Troybilt, Craftsman, Toro, Tecumseh, Kohler, and Kawasaki experienced. Keep in mind we do this for nothing more than ratings, please be thoughtful with them, and fair. We take great time to try, and help, please be as kind when rating us........Tom

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