You won't get to ride a motorcycle at the USA events, but they are terrific inspirational events (and I have a t-shirt from attending the Harley event in the USA that gets a LOT of attention whenever I wear it).
Also during the Krebs cycle, the two carbon atoms of acetyl-CoA are released, and each forms a carbon dioxide molecule. Thus, for each acetyl-CoA entering the cycle, two carbon dioxide molecules are formed. Two acetyl-CoA molecules enter the cycle, and each has two carbon atoms, so four carbon dioxide molecules will form. Add these four molecules to the two carbon dioxide molecules formed in the conversion of pyruvic acid to acetyl-CoA, and it adds up to six carbon dioxide molecules.
Step 1: Condensation. In first step of Krebs cycle, Acetyl CoA combines with oxaloacetate in the presence of condensing enzymes citrate synthetase. CoA is released out. The product of condensation is citrate which is a tricarboxylic 6-carbon compound.