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Show Cranking Not Necessary When Engine Is Stubborn Many motor owners prime their engines, en-gines, close the relief cocks, turn on the switch and crank until their backs nearly break. A much easier way Is to prime the engine with relief cocks open, turn over the engine about twice to each cylinder, then close relief cocks, turn on the switch and throw the wheel back against the compression, compres-sion, and nine times out of ten it will start on the first or second attempt. The reason is that the prime charge is too rich to Ignite quickly. The air taken into the relief cocks helps to make a good mixture quickly. It might take 20 revolutions at the crank to get enough oxygen in through the carburetor car-buretor to vaporize the prime. |