After my starter gear broke, I bought a top side crankcase of ebay. When I was taking it apart I didnt notice till now when im putting it back together. That on the piston connecting rods its printed Either A1 or A2. I have 3 A2's and 1 A1's. My question is does it matter which piston goes into which cylinder. I cant find anything in the manual or parts diagram showing which one goes in which cylinder. Everything on the motor is stock. Can anyone help me out. Does it matter which piston goes into which cylinder. I wish i would of marked them so I knew which cylinder to put them back in, but hey you live and you learn always a next time. Thanks in advance for any help.