900 running like crap?

[bannockrider]

So I bought my 900 this year and have put almost 500 hundred miles on it already and it had run great until now. I went for a ride today in about 2.5 feet of heavy pow, was on my way back when I lost most of my power it wouldn't run hardly at all. So I stop and check it out and i can tfind anything wrong: good compression, had oil and gas, and the plugs were pretty clean. And its not putting out any error codes. So what the hell is going on.
Thanks for any help or info.

 

[MacDawg productions]

TPS? Anyone?

 

[TGitt]

I would check the TPS. If thats not it, you might want to check the ECU. My sled was doing something similar to this, put in a new ECU, problems went away, until this weekend when my crank went...

 

[bannockrider]

TPS? Anyone?

I would check the TPS. If thats not it, you might want to check the ECU. My sled was doing something similar to this, put in a new ECU, problems went away, until this weekend when my crank went...

So the tps controls the spark, so was I probably running on one cylinder? How can I check the tps/ecu?

 

[diamonddave]

Maybe if you can describe the symptom a little more, 05 or 06, we can get a better idea of what's going on. Running like crap is a little vague. Is it hitting full RPM, what knid of airbox, pipe, etc.??

Need more info.

 

[bannockrider]

It is an 05. It will atart and idle fine but when i give it throttle it wont move until im almost full throttle but im only hitting 4000 rmps then it will start to move but about 5mph and it back fires every other second. It has a FNI airbox and slp pipe and can.

 

[MacDawg productions]

Will your reverse work? TPS stands for Throttle Position Sensor. The sensor is on the left side of the throttle bodies. It's job is to tell the computer how far the plates are open or closed, hence regulating air, fuel mixture. Common side affects of a tps out of whack, is your reverse won't work very well, idle like a bag of poop, and will just sound like it needs a tune up. Back firing can also happen. Too much fuel, not getting burned off. Search the stickies, loads of info on it. Good luck! When my tps was hooped last week, it sounded like it was running on one cylinder too.

 

[yz400ex]

Did you get any snow in the intake by chance?? There are a few things that can do that.. Does it sound and feel like its only running on 1 cylinder?? did you verify spark on each spark plug?? Could be the TPS, but would it just go out of whack that far all of the sudden during a ride??

 

[sliderxc]

So I bought my 900 this year and have put almost 500 hundred miles on it already and it had run great until now. I went for a ride today in about 2.5 feet of heavy pow, was on my way back when I lost most of my power it wouldn't run hardly at all. So I stop and check it out and i can tfind anything wrong: good compression, had oil and gas, and the plugs were pretty clean. And its not putting out any error codes. So what the hell is going on.
Thanks for any help or info.

check to see if you have Ice in the tank do to the poor gas we have to run also you want to check the fuel line in the bottom of that tank Mine fell apart or should I say turned to mush so just a few easy things to check let us know how you make out

 

[IceCap]

I would suspect the stator.

 

[diamonddave]

I would suspect the stator.

Definately a strong possiblity although I think I might check fuel pressure (restricted fuel filter?), try different spark plugs, inspect exhaust bellows and valves, this is also a good way to verify coolant hasn't entered the motor, and of course, TPS and connector. However, typical TPS symptoms don't seem to equal what we're seeing here. Broken oiler cable although I didn't notice runnability probs when that happened.

Oil level sensor light on by chance? If you try disconnecting say your air temp sensor, can you trigger a check engine light to come on and blink?

 

[sliderxc]

definately a strong possiblity although i think i might check fuel pressure (restricted fuel filter?), try different spark plugs, inspect exhaust bellows and valves, this is also a good way to verify coolant hasn't entered the motor, and of course, tps and connector. However, typical tps symptoms don't seem to equal what we're seeing here. Broken oiler cable although i didn't notice runnability probs when that happened.

Oil level sensor light on by chance? If you try disconnecting say your air temp sensor, can you trigger a check engine light to come on and blink?

check the fuel lines in the tank

 

[hockey1004]

my thoughts are to get it in a warm place. let the sled cool down and melt the snow off the sled and see if things change. after running through the deep snow, if you still have a radiator u could have packed snow in that area and then the sled overheats and goes into shutdown mode. my other guess is you got snow in your intakes. and last thought or question is how many miles are on the sled?(have the valvles or exhaust bellows been cleaned out since you have had the sled?)

just my two cents

 

[markoo]

We had a 05 900 that ran good up to 5000 rpm then it started to pop and backfire. It turned out to be a bad stator.

 

[bannockrider]

Well after multiple hours reading on here and many hours messing with my sled i couldn't find out what was wrong so took it to the dealer and it was bad injectors. So there goes another $500 bucks.

 

[guidoxpress]

Well after multiple hours reading on here and many hours messing with my sled i couldn't find out what was wrong so took it to the dealer and it was bad injectors. So there goes another $500 bucks.

WOW..you dont see many injectors go bad i bet...

you can try getting them from ebay, or from a sled that is being parted out..there is quite a few around here..

hate to see you spend that much on the injectors from the dealer..

did they do a flow check on them? or how did they deteremine they were bad?

 

[guidoxpress]

here is one from ebay...

not sure what color injectors you have but its a start at least..

http://cgi.ebay.com/Polaris-RMK900-...wmobile_Parts_Accessories?hash=item4a9df6cb05

 

[yz400ex]

I have 05 injectors for sale..