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Mcculloch 14 wont stay running more than a few minutes
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<blockquote data-quote="Pappy" data-source="post: 482675" data-attributes="member: 3278"><p><span style="font-size: 18px">You definitely have a diaphragm failure in the fuel pump. The fuel leak is the tell tale on that. </span></p><p><span style="font-size: 18px">Yes, pretty much any fuel pump you can find will run a 14hp engine. Find one with the same number of fittings for inlet/outlet/pulse line. </span></p><p><span style="font-size: 18px">On the primer bulb......the bulb will only stay firm when you are pumping it and the needle is seated in the carburetor. Remember the bulb is on the suction side of the fuel pump and therefore will not stay firm while the engine is running. </span></p><p><span style="font-size: 18px">Once you rectify the fuel pump then work on your High and Low speed carb settings. The manual will only give you rough initial settings. At idle richen or lean the mixture (in the water) until you get as smooth an idle as possible then richen a touch. On the high speed you want the most RPM you can achieve (in the water) and again, richen just a touch. </span></p><p><span style="font-size: 18px">Your fuel mixture is not too rich. I run my antiques on a 16:1 mixture all the time and they have a much less robust ignition system than your engine does. </span></p></blockquote><p></p>
[QUOTE="Pappy, post: 482675, member: 3278"] [size=5]You definitely have a diaphragm failure in the fuel pump. The fuel leak is the tell tale on that. Yes, pretty much any fuel pump you can find will run a 14hp engine. Find one with the same number of fittings for inlet/outlet/pulse line. On the primer bulb......the bulb will only stay firm when you are pumping it and the needle is seated in the carburetor. Remember the bulb is on the suction side of the fuel pump and therefore will not stay firm while the engine is running. Once you rectify the fuel pump then work on your High and Low speed carb settings. The manual will only give you rough initial settings. At idle richen or lean the mixture (in the water) until you get as smooth an idle as possible then richen a touch. On the high speed you want the most RPM you can achieve (in the water) and again, richen just a touch. Your fuel mixture is not too rich. I run my antiques on a 16:1 mixture all the time and they have a much less robust ignition system than your engine does. [/size] [/QUOTE]
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Mcculloch 14 wont stay running more than a few minutes
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