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Post by chaos84 on Nov 10, 2023 10:19:52 GMT -5
I stripped the PAIR off my Gator 50 S3. Also bought a 139q carburetor ignition coil new plug as well as battery. After stripping all the emissions stuff I learned that it left me with one spot off the valve cover and the new manifold only had one port that I was instructed to block off. It will not keep running I'm not sure what it could be
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Post by GrumpyUnk on Nov 10, 2023 14:46:21 GMT -5
Most of the black elbow intakes have one port. That is a vacuum source to operate the petcock diaphragm. It must be connected to the petcock diaphragm to allow fuel to flow. If the carburetor float bowl is empty(as in the case of a NEW carburetor) the vacuum will only be there when cranking, and fuel may take some time to fill the carburetor float bowl. You can shortcut by applying suction to the diaphragm rubber tubing. Watch for fuel to fill the filter chamber as a sign that fuel is flowing. Once it stops, the float bowl is likely full and should allow the engine to start and run.
If you have more than one port on the elbow, it should be capped. The tube from the valve cover may need to be routed upwards and extended in length to keep oil from getting blown out when the engine is running. The metal tube from the exhaust... ummh. I forget. But they can be blocked off with sheet metal & a couple bolts. Don't remember where the other end goes...
You may need to adjust the hard stop screw on the new carburetor. It will open the throttle plate just a little for idle rpms. The byvalve(black slug on the side with two wires) will allow fuel & air to feed the engine when cold, and will slowly close as it warms up. It is powered when the engine is running, not all the time.
tom
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Post by chaos84 on Nov 12, 2023 14:48:29 GMT -5
Okay so I did cover the hole on the head I did extend the tube from the valve on the valve cover. However with the shortage of hose I had I used two different sizes but it does seem to have some air movement. I'm guessing the black slug you're talking about is the electric choke should I leave that plugged in or unplug it? Cuz I understood it on this particular model you had to vent the gas tank and essentially it was said that there should be a tube running from there to the filter however I don't understand the need for that. I do Wonder though because even with these steps it's still will not maintain a idol when I open the throttle it runs just fine for a couple of minutes and then it bogs down like it's not getting enough fuel. So I reset the needle in the carburetor and went from the gas tank to filter the carburetor there's no longer even a shut off. I did buy a new carburetor new ignition coil you plug and battery. The one thing I did notice is that it restored some of the power. However it will not keep running. I still can't figure out what to do about it.
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Post by chaos84 on Nov 13, 2023 12:30:22 GMT -5
I should have noted that the biggest symptom right now is that the bogs down and sounds like it's running out of gas
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Post by FrankenMech on Nov 13, 2023 14:49:52 GMT -5
Bogging can be caused by a lean or rich condition. I usually try to determine which one by causing a rich condition with a piece of tape partially covering the air filter intake. If that makes the problem worse that means that your bog is caused by a rich condition.
Gas tanks must ALWAYS be vented either through a vent in the fuel cap or a vent tube connected to a hose etc. Otherwise the fuel flowing out of the tank will cause a vacuum in the fuel tank that will stop fuel flow. One way to test for a problem with the vent is to leave the fuel cap loose.
Pictures of your problem always help us diagnose the problem.
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Post by GrumpyUnk on Nov 14, 2023 9:02:49 GMT -5
If you want to check fuel supply/flow, disconnect from the carburetor inlet, and direct the flow to a gas can. Apply suction to the vacuum petcock using a source such as a MityVac(sp). It will apply vacuum and hold it if the diaphragm is intact and the hoses non-leaky. The fuel SHOULD flow from the line that was connected to the fuel inlet at full diameter of the fuel line. If you do not get that flow, there's something wrong: line collapse or deterioration internally, clogged fuel filter or wrong filter(openings too small), petcock clogged, or the outlet in the tank clogged. The outlet has a plastic tube with screening built in. If there's junk in the tank, it can collect and slow the flow, or stop it such that your engine will starve... But the first thing to know is: Do I have good flow through all the bits & pieces?
tom
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