This motor is a little hard to start and sneezes a little when it first trys to turn over. After I get it to run, it jerks a lot at idle and dies. If I push the RPMs, it won't jerk as much. It will die when put into gear. Sorry, I don't know a better word for it than "jerks" because that's kind of what it does. Also, it smokes a lot, but I know it isn't the gas because my other outboard ran clean on it. I have replaced the head gasket, plugs, and it has good compression, spark, and cooling. I am green on outboards and certainly frustrated. Any suggestions?