'86 carbed EA82 manual..when stepping on the brake pedal More then Once will cause the motor to shake momentarily ..I have installed new clamps on the vac hose going to the brake booster, but still no difference, and I have also sprayed carb cleaner around the other connections surrounding the carb..all seems to be tightly sealed

That's normal - you are introducing a vacuum leak each time you step on the pedal. Some carb tuning and timing adjustments will minimize it but you can't get rid of it entirely.

 

GD

maybe you need fresh motor mounts. a little shaking under various conditions is normal but consider your motor and transmission mounts too.

Thanks guys