I Desperately need a carburetor for my Johnson 3 cyl, 75, 1983 model j75ecte, ser# j5828787, the # cast in to the top of the carb is 328279 <br /><br /> Now a little history on my problem, I have owned this motor since new, I let the motor sit for a couple of years and did not winterize it. Then last year I got the boat out and tried to start it but it would not run. <br /><br /> So I took the carbs off (They were full of water and brown soupy stuff) and rebuilt them, replaced all fuel lines, the tank & all fittings, the fuel pump, the motor started and idled fine and would go to about 1/2 throttle just fine, but more throttle would cause it to fall on its face and not get the boat up on plane. <br /><br /> Unless I would hold the key in the choke position, when the choke was held on the boat would get on plane and stay there as long as the key was held in keeping the enrichment circuit in the carbs on. these carbs are the enrichment type. <br /><br /> Anyway now is where the story gets sad, I rebuilt the carbs no less than 4 times. <br /><br /> Then gave the boat to a marine dealer who after I told story, said I was just not doing it correctly. He rebuilt the carbs twice same thing. <br /><br /> He then said the crank seal on top of the block was the problem, so I replaced it, same thing still the same problem. <br /><br /> So I took it to another marine dealer that said he was an expert on 3 cyl omc, he replaced all coils power pac, and all other stuff he could think of and of course he rebuilt the carbs, result? The same problem as we started with. <br /><br /> He then said the seal between the case halves must be leaking so I needed a complete rebuild. Well every thing else was new at this point so I took the boat to a shop that specializes in rebuilding marine engines Blackbird industries, near Pittsburgh, Pa nearly 5 hours away from me. <br /><br /> I talked to them about the problem and they laughed and said the rings were probably stuck on the piston causing #1 carb from working properly. <br /><br />By the way I had narrowed it down to #1 very early in the hunt, because if I held my fingers in front of #1 carb with the throttle open all the way the rpm would pick up and the boat would stay on plane till I removed my fingers then the rpms would drop and the boat would fall off plane. <br /><br /> Blackbird said they would rebuild the carbs also after a vibrasonic tank cleaning and check everything, along with a complete rebuild.<br /><br /> At this point I was lost and was so frustrated.<br /><br /> I said go ahead and took the boat to them, they had quoted me 1450.00 but of course they called me and said my crank was bad and it end up costing me almost 2000.00 not counting my time to take it to Pittsburgh and go get it. <br /><br /> Well you guessed it same thing, the damn same problem. <br /><br /> So I called Blackbird and they said the carbs are not a part of there warranty, that I was on my own. <br /> <br /> So here is what I have done, I pulled the top carb off and put it on the bottom cyl (swapped them) the problem then moved to the bottom cyl (surprise it was the carb all along). <br /><br /> I hate to tell you this but I am a mechanic, and build race Holley carbs for people at the drag strip on a regular basis. But this 2 cycle stuff is not my ball park.<br /><br /> So I thought I would rely on the experts, well after spending 3000.00 plus, the problem is the carb just like I thought in the very first place. CAN YOU HELP ME? I need a carb or an equlivent set of carbs This is a 75 hp, 15 inch, Johnson 1983 75 hp, 3 cyl, j75ecte, ser# j5828787, the # cast into the top of the carb is 328279 <br />Please help if you can.<br />George Sellers<br />340 North 2nd Street<br />Wormleysburg, Pa 17043 717-979-4397 cell 1-800-382-1436 work, CVM Dodge ask for George
) he should be able to point you to someone.<br />Good luck