John Deere Utility Vehicle M-Gator Technical Manual
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By fikey
I am about 6 months in to owning my 520. It is used mainly to run back and forth to our barn and shop. Occasionally, I run it up and down a few fairly steep hills on the property. One day, as I was going up one of the hills, the motor started sputtering and a tremendous amount of smoke was coming out of the exhaust. I was near the top and it made it (sputtering) up. Once back on the flat, I made it home. I loaded it on the trailer and took it back to the dealer. They said they checked everything out and found no issues. Over the next month or so, I only had occasion to go up hills once or twice with no issue. Then one day, again as I was going up a hill, the engine sputtered, giant plume of white smoke and then the engine died. 30 seconds later, started up and made it to the top. Repeated the route (down and up) and the same thing happened again. Called the dealer and their head of service said he would come out and wanted to see it first hand. He came out a few days later and repeated the route several time and it never happened with him in it. I had videoed the whole thing on one of the times it happened to me, but since it happens intermittently, could not produce it when he was here. I told him that I had checked the temperature, the oil level and the antifreeze level after each occurrence and they were normal. I asked him to call Kubota and ask what the possibilities were and that I am not fond of it dying on the hill and blowing the smoke and I didn't want to wait until something catastrophic happened to figure it out. When I followed up, they had no answers (which doesn't exactly please me). Any ideas? The attached photo was the start of the smoking. Didn't know how to upload the video of the whole thing, but it fogged the whole area.
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By RBonds007
I bought this SxS brand new. A couple of years after I bought it, I became disabled. Thus it has only 47 miles and around 16 hours of use. I have no need to keep the SxS. I am in Foley, Alabama. It is very hard for me to get in out of the Challenger. I would like to sell the set, 2019 Challenger 400, trailer and uninstalled winch (this was bought brand new as well, someone was supposed to help this newbie install and we never got around to doing this). I want $6500 for the whole set OBO (Serious offers only).
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By Jeff freeman
I have a Coleman 550. Was having problems to start with where it would start and then shut off after a couple tries. It would take off and be good. It then got to a point where it would not start at all. I replaced the fuel injection twice the second time I replaced it I noticed a mouse or something had chewed one of the wires that connect the electrical to the fuel injector. . So two-part question first does anybody have a part number for that wire harness? Second, any other ideas after I fix the wire harness permanently on what could keep it from starting I have gas flow up to the fuel injector.
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By oakhill
When I am moving forward on my Hisun 500, the motor accellerates up and down while I have my foot on the gas pedal. It also is not idling very well. Both symptons appeared at about the same time. What should I look for? Thanks.
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By Andy Dickerson
So heard the grinding noise on the drive shaft a couple of times while going down a steep hill. Never heard this before going down the same hill. I already knew about the splines wearing out because of improper heat treating so I went through the process of removing the shaft to just replace it. A lot things need to be removed to get that thing out. Once I had it remove I didn't see any wear on the splines but what I did notice was the rear spline to rear differential had ZERO grease i.e. it was completely dry and I could see rust that had developed on the shaft splines and inside the differential mating surface. The front of the shaft where it connects to the transmission was well greased. Both ends of the shafts have springs in them with the rear spring being multiple times heavier which would force the shaft to mate securely into the transmission. Unless of course the rear is rusted and starts sticking which is what I think was happening. If the rear splines begin to rust and it starts sticking and the spring doesn't have the enough force to overcome the sticking because of the rust, the shaft will not get fully seated into the transmission. If this starts happening frequently it will eventually eat up the front splines on the transmission side shaft splines which is exactly what I see in the pictures of stripped splines.
I don't know why the rear spline shaft wasn't greased but this would cause it to eventually stick. I have been concerned about this ever since reading about it so as soon as I heard the grinding I stopped driving it. Thankfully there wasn't any wear. I'm wondering if this was deliberate or just laziness by the assemblers. It makes no sense not to grease it. The repair manual that I purchased from motorcycle doctor specifies to grease the splines. Both shaft ends have a rubber seal meaning there's is supposed to be grease in there.
I used to have a gold wing and there is a special grease required for the rear drive differential which happens to be a spline shaft setup. They use a lithium grease with moly. I had purchased a couple of tube of Magnalube-gx that I never used as I sold the bike. The Hisun manual recommends using a lithium grease which doesn't have the additives of a lithium moly grease that is specialized for spline shafts. Per magnalube website. "Magnalube-GX, however, uses a proprietary matrix of advanced polymers, molybdenum disulfide, and PTFE, so it stays where you put it without getting pressed out, while also maintaining a low frictional drag."
Anyway, long story short everything is back together and no noise. I would recommend those that haven't checked the grease in the splines on both ends to do so before the shaft get destroyed. Especially If you have heard grinding. Those rubber boots can be pulled back without having to take to many parts off. If you've been hearing grinding then there is probably significant wear already and time to replace the shaft and grease it properly.
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