if you dont have a good breaker bar, you better find one... if the motor is on a stand put 3 bolts in the flywheel saide of the crank. put a socket extension in the middle, turn the crank so that the extension is stopped against the stand. lossen the bolt.

also be carefull when you use the balancer remover tool. the pointed piece can get stuck in the end of your crank and damage threads. try to use the washer from the back of the balancer bolt and put it against the end of the crank where you just removed the bolt from. then the pointed piece can push against that instead. may need a hammer to get it loose so that it starts comming off.