Small Engines (Lawn Mowers, etc.): Craftsman Lawnmower model 944.600191, gas filter, electrical problem

Question
Motor will stop when engaging blade or releasing brake but not all the times. The motor works fine for about 10 to 15 minutes and then this problem starts (sometimes problem starts when lawnmoyer starts). I'm able to get the motor going by releasing and pressing on the brakes and engaging and de-engaging the blades. Seems to be electrical problem.

Already changed spark plugs, gas filter,  solenoid, battery and ignition.

Answer
Al
Somewhere the safety switch mat be faulty for the brakes. Check near the pedal to see if thee is a small switch if there is you can temporarily by-pass this by inserting a small solid wire in  the slots. Then try o start and mow,what this switch is for that you have to engage the brake so that when you turn the key the mower doesn't jump in gear and you lose control and get injured. If the switch is bad then install a new one,do not keep this by-passed as it could lead to injury or worse death!!