Hello All: With advice from khouse, restorob, stumper and a host of others I got that Briggs with the busted rod back together (m/n 28N7071036). Now that I have the motor cleaned up, filled with oil and set up on a test stand, I realize that my rather weak battery does no have the juice to crank the engine past the compression stroke. I suspect that the compression release is not operating. I should be able to get it started with the battery out of my car, my question is will the compression release likely free up after running for a while? Also, if it will not start working after running, is there a trick to get it to operate without opening the crankcase?