QuestionHello again
I was talking about the coil, they call it an armature on the diagram you are talking about. The coil or armature (part # 6910600) was the part that I was talking about that I replaced both of them. I mentioned not being sure if the gap was set to the exact measurement of .010". The problem is that I was getting power to everything and the engine was running until I hooked the black wire that goes to the coils to the positive terminal on the battery and smoked something. I was thinking it was the coil but I have now replaced both of them and am not getting spark out of the coils. I did get a mild pulsing shock when I actually held the coil wire end and touched the metal of the engine, but it wasn't much and it doesn't send a spark out the end when it is near the spark plug. What could be the problem now. Is it possible that the alternator or the coil of wire that is inside the flywheel surrounded by magnets could be bad? Or is there a possibility that the gap is very slightly off and is causing no spark. I don't know how sensitive the gap between the coil(armature magneto) and the magnets on the fly wheel are but didn't think that it was that sensitive. If it is could that be the problem? Also is there a way to test the coils to see if they are bad? I just bought two new ones so don't think they are bad but if there is a way to test them then I can do that as well. Any advice is always helpful. Thanks so much for putting up with me through so many questions
-------------------------------------------
The text above is a follow-up to ...
-----Question-----
Hello again
I replaced the magneto on the tractor which if you remember from a long time ago I was thinking I fried when I hooked up power to the ground wire. Well I finally got the parts in and installed them. I don't get any spark from them when I crank the engine. I disconnected the wire from the spark plug and held the wire and touched the metal covering while cranking and felt a pulsing shock. But if I hold the wire near the spark plug or other metal there is no spark jumping to from the wire. Any idea why there is no spark or what I can do to figure out what is wrong. I believe the gap between the magneto and magnets on the fly wheel is the required .01" gap. It could be off a very slight bit, I have old gap device. Could that make the difference between spark and no spark at all? It wouldn't seem that it should be that important. I wish it was it but just seems like I must be missing something or else something else could have fried. Is there a way to check whether a magneto is bad or good? Well hoping you can help again.
-------------------------------------------
The text above is a follow-up to ...
-----Question-----
Hello again
I would like to clarify something. The wire from the oil filter is a low sensor that shuts the engine down if the oil gets to low, and is a ground wire. Can this wire be hooked to the same black wire that grounds the coil and then hooked to the black ground wire from the ignition switch, or will this cause problems. If it should be hooked to something else where would be a place to hook the black ground wire from the oil filter to? Also I had my friend hook up the wires like you were stating in the earlier thread and he hooked the red wire to ground and the black wire to power. He switched them in the harness. I tried to start it and smoked something. I am thinking that with the wires reversed, it probably fried the coils. I did check and there is no spark anymore. Is that what happened or is there something else that would have burned up. The wires that were reversed were the power wire to the fuel solenoid and the ground wire to the coil. These were the wires I was questioning in the previous thread. I must not have made it clear to him what went where and I didn't check it before starting the engine. He had the switched power red wire going to the black wire from the coil, and the ground going to the fuel solenoid. The fuel solenoid still works so it wasn't that and I figure hooking it to ground wouldn't do any harm. Please advise if you think that the most likely thing that went bad or what else it might be. Also please advise about the black wire from the oil filter that I mentioned earlier. If that can just connect to the same ground wire that the coil does, it will make it very simple. Well thanks a ton you have been really patient with me. I imagine this must be hectic at times for you
-------------------------------------------
The text above is a follow-up to ...
-----Question-----
Hello again, the wiring schematic doesn't help because it doesn't show the wires I need. I took the cosmetics off the top of the engine and traced the White/Black wire clip. The white wire went to the fuel solenoid and the black wire went to either the magneto armature or grounded. I couldn't really tell on that one. I hooked the white wire to the positive terminal of my battery and it clicked the solenoid on and the engine started and ran great. I couldn't shut it off with the switch though. I tried hooking the White wire to the switched power red wire from the ignition switch but it still didn't shut off right. I don't know what the black wire does but it must have something to do with shutting down the engine. I also can not figure out what the single wire from the base of the oil filter could be. It is a black wire and the engine ran fine with it hooked to nothing. Could that be for some meter or something. I couldn't find it in the parts blowout on the site you listed. Well thanks for the help, You are extremely knowledgeable
-------------------------
Followup To
Question -
Hello
My old tractor blew it's engine bought new one to replace it and there is a wiring conflict. My old tractor MTD Tractor model # 14AI825H352 has only 3 wires that connected to the old engine. 2 together in a plug and one single wire. The new Briggs and Stratton engine
OHV 22HP
family= ybsxs.7242VF 274844
Model = 407777
Type = 0124 E1
Code = 010131YG
Has a total of 5 wires, there are 4 wires coming from the top side of the motor. They are in sets of 2. Two in one plug 2 in the other. There is also a 5th wire coming from the base of the oil filter. The 2 wire harness from the tractor does hook to one of the 2 wire harnesses from the tractor but that still leaves the other two wire harness with nothing to hook to and the one wire from the tractor with nothing to hook to.
I was guessing the two wire harness from the tractor was the power and starter wires and the 3rd wire from the tractor was some sort of stop wire. When it comes to the extra two wires from the engine and the oil filter I am at a loss
Here is the wiring color scheme and placement.
Tractor - (Red
-----Answer-----
Hello Wesley:
You can Hook the Low Oil Shutoff to the Coil Shutoff Wire like you Asked. From your Description it Sounds like the Coil/Coils is/are Fried. You can View a Breakdown/IPL of this Engine at this Addy http://www.outdoordistributors.com/ and Click on the B. Then Select Briggs and Stratton. Then Select Don't have Part Numbers. Then Select File # 40. Then Select Folder # 407700. The Coil Part Number is B
Answer Hello Again Wesley:
We will Get to the Bottom of this. No Worries. Are the Magnets on the Flywheel Good? If yes, then Disconnect the Shutoff Wire from the Coils. Remove the Spark Plugs and Turn the Engine and Check for Spark. If No Spark, Check the Ground Lead of the Coils and Look for a Break. If the Magnets are good and will support a 9/16" Combination Wrench and the Coils are Good, you will get a Spark when the Magnets Pass Over the Coil Pickups. The Magnetic Fields Passing by the Pickups Creat the Current and the Coil Fires. One Lead of the Coils is Grounded and the Other is Routed to a Shutoff Switch, which Grounds the Coil when you are Ready to Stop the Engine. The Flywheel Key Times the Coil to the Position of the Piston in the Cylinder During the Compression Stroke. You May have My Luck and Purchased 2 Bad Units. I have had it it More than I Care to Remember. Hope this Helps. I am Here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
