Re: Honda BF40 Carb Leak
Nav,<br /><br />Thanks for the great advice. I replaced the fuel filter and plugs as well as the fuel/water filter after removing all the fuel from the fuel tank. The fuel was old and bad with out a doubt. The "old" fuel smell reeked! I will be cleaning the carbs as you described as soon as I get some parts. Is there a carb kit that I should buy or should I buy parts based on what I find after opening?<br /><br />Regarding the leak. When the engine was running, I could see the fuel leaking slowly from the lower carb round metal seal. I realy can't find out what the previous owner did to it since he can not be reached. Do you know how that round seal is removed and replaced? I would like to know before my manual arrives (already ordered) and what could cause it to break. The seal is located on the side of the carb, visable when removing the engine cover, above the bowl. Thanks again for your advice.
We're all here to help.<br /><br />First thing I would do is pull the plugs and replace if they look worn. Bad plugs will cause it to miss and idle rough. If you dont know when the last owner replaced them, just do it anyways. They're only about 8 bucks total for all 3.<br /><br />Pull the carbs and give them a once over. Its best if you invest in a manual if you intend to do the maintenance yourself. Iboats sells them here if you look at the top of the screen. <br />That said, to remove the carbs, remove the airbox silencer from the front of the carbs. It's that plastic black cover. Next remove the shift linkage from the carbs. Lastly, unbolt the intake manifold from the block. The intake manifold will come off with all 3 carbs attached. Now you can take each carb off separately and clean them thoroughly. The low speed ports are very small so you will need to make sure they are all clean. Compressed air and a piece of fishing monofiliment do a fine job of probing and cleaning them out. If the engine was laid up with the carb bowls full, you may find residue. Carefully remove the floats and make sure that the float needle valve isn't sticking. <br /><br />The fuel leak you mentioned, did you actually see it leaking or was it residue form a past life? Did the previous owner try to change out the high speed ports? If it is the metal plug leaking, that can be replaced. I'd just try to find out how it started leaking in the first place. Those parts usually do not leak and are sealed from the factory.<br /><br />Nav 
