jumpy at slow speeds

[roland721]

got a 2009 ranger xp le. been a great utv and alot of fun. here lately it has acquired some issues. when you start off from a stop slowly it jumps and jerks around alot till you get up to higher speeds. same goes for in reverse. i checked the belt thought that i might of had a problem with it but it is still in like new condition. the ranger only has 27 hours on it and 126 miles....what is going on.....really not impressed with this problem..

[GRAZOR]

Need more info on this one but if it seems as though it is throttle rather than tranny issues the first place to look would be water in the fuel.

I would zap the tank with a bottle or two of dry gas and see if that helps at all. Most of us have to fill these from 5 gallon plastic cans and they can be a constant source of problems. I was out in my shed yesterday and we had a very cold night but it got to 70 that afternoon. I looked at the two plastic cans and both were soaking wet on the outside from the cold fuel in them hitting 70 degrees. I am sure there has to be some condensation going on in the inside as well. Kind of a catch 22 here because you should not store fuel in the house or garage and you should always keep stored fuel at a constant temp to avoid the condensation.

If you have no other choice for storage and want to check it yourself then pour the fuel in to your UTV slow and leave a little in the jug. Pour what was left into a white 5 gallon pail and look in the bottom for the water which should be pretty easy to see. I never empty the entire jug into my machine and keep another jug handy that I use for old gas to start the burning barrel. Water is heavier than gas and always stays on the bottom unless it is drawn up by the fuel pump.

Gary

[Z71]

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f. When a mixture of water and ethanol degrades and creates gums, varnish and other insoluble debris, fuel flow passages can become narrow or plug, significantly affecting engine performance.
g. When the correct amount of fuel cannot flow to the engine, equipment becomes difficult to start and performance becomes unstable.

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[Scooby]

when you say you "checked the belt"
does that mean you removed the belt and inspected all the teeth ?

mine acted wierd kinda cluncky on take off and reverse. I thought maybe the belt too. took the cover off and looked it over real well and it looked good.
just before putting the cover back on I thought what the heck, slipped the belt off and there it was 2 or 3 missing teeth.

[pinecrestfarm]

sounds like a stretched belt. mine did the same thing with low hours. i actually got thinking about it after i replaced the belt and remembered that i had probably did it when loading it one day in high range. bet a dollar that a new belt will fix problem. belt can be stretched enough to create this type of problem without showing it by the naked eye

[GRAZOR]

I agree about checking out the belt again. I had a Sportsman that acted pretty much the same and the belt looked fine while still on the clutches. After I took it off I was able to see a few of the cog teeth torn and chunked out and I knew exactly when and where I did it.

The best advice I can ever give is "When going slow, Go in Low". We have one spot on our trails that is a belt killer. We need to have some speed to get up but it is an SOB right at the top and the machine should be in low there.

Gary

[mudlover]

Originally Posted by roland721

got a 2009 ranger xp le. been a great utv and alot of fun. here lately it has acquired some issues. when you start off from a stop slowly it jumps and jerks around alot till you get up to higher speeds. same goes for in reverse. i checked the belt thought that i might of had a problem with it but it is still in like new condition. the ranger only has 27 hours on it and 126 miles....what is going on.....really not impressed with this problem..

I have the same symptom in my parking brake is left on slightly. Check yours is releasing completely

[skennedy]

Yep I agree check the belt again. I have a 2010 HD and was doing the same thing at 40 hours. New belt fixed the problem. The old belt looked fine except it had 2 small flat spots wear on the side of the belt that would be almost impossible to see unless you took the belt off.

[stroker101]

how is this "belt condition" and the jerky condition when taking off in fwd and reverse? this is with a machine with "0" hrs, a brand new machine (2010 Crew)