Brand new Briggs and Stratton Engine looses power when put under load
Hey Jacks Engine Repair Forum,
As stated in the title, I bought a new engine for my riding lawnmower when the last one failed. The new engine is a 25 hp Briggs and Stratton (PN:44U877-0007-G1). Whenever I put the engine under load, for example when I turn on the mower deck, the engine dies. I tried to contact the Briggs and Stratton hotline however they are not very helpful.
Does anyone here have any advice on how I can make the engine work better?