Posted by John M on August 22, 2016 at 15:45:46 from (67.231.165.179):
Since figuring out the electrical gremlins on my ZTR, I have a new one. Ill try to explain the best I can. 2 tanks, hold 5 gallons each. M=Mower got to where it would only run 10 minutes or so, and then just die. If I was fast enough to kill the deck, and move the choke to about 3/4, I could make it back to the building. Almost the exact same time, the engine on my other ZT started having very similar symptoms, and after investigation, I found water in my gas can. (Still not sure how that happened)I drained and cleaned out the tank on ZTR #2 and all is fine. On the first one, I drained the fuel, and sure enough, water in the fuel. I took both tanks off and have let them sit in the sun, and are dry. I replaced the fuel lines, since they were off, and getting old, as well as a new fuel filter. I removed the carb and cleaned what little gunk was in there, which wasn't anything more than a little drop of water or two. I also removed and checked the valves, which were fine. After getting it all back together, I put a couple of gallons in each tank. The engine started, and ran fine, so I let it sit for a few minutes, and it never missed a beat. So I get on, head to the yard, make 2 rounds and it starts dieing again. I managed to get it back to the building, and keep it running by choking and playing with the throttle, but I did notice that the filter had no fuel in it. Not just a little, NONE. If I choked it, fuel would pull into the filter and it would stay running. It finally got to where it would no longer stay running, but I sat there for a few seconds and watched the filter and the fuel slowly filled the filter back up. I can take the lines loose, and blow through the lines fine, plus with them being new, I don't think they are the problem. I can take the line loose at the pump and have feul coming out the line to the carb, and it does push fuel when I turn the engine over, but no real force behind it.
My next step was to check for spark. When the engine finally died, I pulled the wire on each cylinder and I have a good blue spark on each side. I cant even think its electrical, as choking helps for a moment, so I'm thinking the fuel pump isn't pulling the fuel FROM the tank to keep it running. Opinion?
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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