Examples of an apparatus and method for adjusting a viscosity of an adhesive are disclosed. An apparatus may comprise a motor including a spindle. A tooling bit may be disposed spaced from and axially aligned with the spindle extending into a first end of a syringe to contact an adhesive in the syringe while the syringe is detachably mounted for rotation to the spindle. A lamp may selectively shine a curing light on the adhesive. A meter may be coupled to the motor to measure a torque on the motor. The method may include detachably mounting the syringe containing the adhesive to the motor. The motor may be operated to stir the adhesive at a first voltage for a predetermined time. A torque on the motor may be measured and compared to a reference range of values.