my mower is a everstart riding mower with a 12.5 hp briggs&stratton engine.it will run from a cold start for 30-40 mins and then quits.i would let it cool down and start it up again for about 30 mins and quits again.i checked the oil and change it...
Machined bottom end, same piston & rings. Smooth to turn over until plug installed.Too much compression. Confused by function of compression release mechanism. Anybody help? Bruce