I have a 2001 ttr225, will not start. I have 155psi, spark, and have put starting fluid in cylinder and nothing. To get the starter motor to overcome the compression i have used a car battery. Even though i have a new bike battery with it the starter will not turn the motor over. I am at a lose of what to.do.. the spark looks good pulled starter it free spins and spins fine with with power. And with the car battery it will turn the motor over fine. I.have bypassed all wiring going directly to the starter wires with car battery. Have pulled the carb now to rebuild it. Anyone have any suggestions?