Hello, I'm new to this site. I have the engine listed above and was looking for a couple of bits of info on it. 1st, I was wondering if anyone could decipher the year it was made from the serial number? 2nd, it seems like the engine is mostly firing off of the cylinder 2nd from the flywheel. How is this engine numbered - which cylinder is number 1? I'm thinking that both cylinders should be firing evenly. I'm hoping the fuel injector pump linkage can be adjusted so the engine will run more evenly. Thanks for any help.