The Truman Doctrine arose from a speech delivered by President Truman before a joint session of Congress on March 12, 1947.
Positive First. When installing a mower battery, always connect the positive cable first. The positive cable is red. It attaches to the battery terminal post marked with a plus sign, the letter P or the word POS. Attach the negative cable last. The negative cable is black.
Leave the car off. Start the motorcycle. HINT! If you at this point is actually hooking up your motorcycle battery to another motorcycle battery instead of a car battery, you should actually turn on the motorcycle with the good battery first and then turn on the motorcycle with the bad battery last.