Ok guys, You have all been incredibly helpful in the past few weeks and I want to thank you for that. Here's another one for you.<br /><br />1963 Johnson 40HP. A little hard to start I have to turn the choke on, try to start it, it will catch for 1 sec, then die. I then have to turn the choke off and it will start fine. The motor will never run in "the automatic" setting on the carb. Also when the motor is running it will loose power for a minute or two then pick back up. It looses enough power to drop the crusing speed by approx. 10MPH.<br /><br />I have replace the fuel filter this week. The original was dry and brittle. Ran it under the faucet and no watter could pass through. I haven't brought the motor to the lake to test it after replacing the filter yet. What else should I try? I was thinking about trying to rebuild the carb. Or at least clean it. I have never done it before. Any reccomendations?