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post #1 of 20 (permalink) Old 01-02-2013, 09:26 PM Thread Starter
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polaris 700 xcr problems

Help please i have a 98 Polaris 700 xcr (v/220) with gas and oil mixture leaking out of cylinder where pipe meets motor any ideas of what might be going on any input would help and be greatly appreciated!

Last edited by Big Chief XCR; 01-02-2013 at 10:21 PM.
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post #2 of 20 (permalink) Old 01-02-2013, 10:27 PM
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If gas comes out even with motor off, check for bad seat needle in the carb. Otherwise, you could have a bad fuel pump and it's flooding the cylinder on the clutch side (assuming that's the one you're describing) through the pulse line.

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post #3 of 20 (permalink) Old 01-02-2013, 10:34 PM Thread Starter
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thanks for the reply man but gas only comes out when motors running and its the side of motor case is on something as simple as bad plug not burning all the fuel which i will check in the morning?
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post #4 of 20 (permalink) Old 01-02-2013, 10:55 PM
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mine did this, it was oil that wasnt burned. the gasket was bad. sealed the gasket with high heat gasket silicone and it stopped.

1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!
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post #5 of 20 (permalink) Old 01-02-2013, 10:59 PM
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"case"?

Pull the plugs and check them - can't hurt. If the plug on that side is black, wet, and kind of "murky", then it's not sparking and could be contributing to the issue. You can also pull each of the plugs on the front of the case, directly under each plug. If there's fuel built up in there, that will let it drain.

How does it run when it's running? Is it really rough? A bit rough? Or, does it seem basically ok?

You might want to pull the carbs and the "Y" pipe and check from both sides to see if there is any piston skirt damage. Pull the plugs, rotate the motor to get each piston at Top Dead Center and look for holes through them.

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post #6 of 20 (permalink) Old 01-02-2013, 11:11 PM Thread Starter
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runs a bit rough theres no "Y" pipe its a triple/triple! hope theres no skirt damage or holes in the piston the sleds only got 1550 miles on it and the guy i got it from took good care of it ive only had it this season went to the U.P. ran just fine never got hot or anything like that. just happened in the back yard after opening her up a bit shut it down went 2 start it up again sounded bad and noticed the raw feul!
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post #7 of 20 (permalink) Old 01-02-2013, 11:16 PM
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I see sleds all over the place where people have rebuilt them at 2k... no idea why, but they're having issues. I'd like to think your is ok, but I guess you never know.

Pull the plugs, wires, check the caps, pull the carbs, clean them, make sure the seat needles are ok, nothing caught in the needle seats, adjust float arms, make sure they're sync'ed and the plungers are adjusted correctly. Drain the case (if there's anything in there). In order to get unburnt fuel out of the motor on the exhaust side, you have to be putting way too much in or have an issue with a plug not burning it correctly.

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post #8 of 20 (permalink) Old 01-02-2013, 11:30 PM Thread Starter
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Hey thanks man this is only my third sled had my first at 10yrs dad sold it at 13yrs old and now i just got back into it this season at 19yrs and, have a artic cat zl 700 and the Polaris XCR 700 didn't learn much when i was younger. I need all the help i can get lol! Man that Polaris stomps that artic cat! Ive heard that the XCR are very durable and that they were trouble ur thoughts? cuz im leaning toward the second one. The zl 700 was built to be as reliable as possable so at least i can still ride just not near as fun!
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post #9 of 20 (permalink) Old 01-03-2013, 12:32 AM
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he meant the manifold, its still called a y-pipe. drain the crankcase, that causes issues sometimes. there is a drain plug under each cylinder under he exaust manifold on the crankcase. xcr>zr for sure!

1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!
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post #10 of 20 (permalink) Old 01-03-2013, 09:31 PM Thread Starter
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Thanks got it figured out no piston holes or skirt damage plugs good turns out just needed a good carb cleaning runs great now that its gonna b around 40 degrees and the snows gonna dissapear! DAMN IT!

How can the crankcase case problems like i was having???
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post #11 of 20 (permalink) Old 01-03-2013, 09:34 PM
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Quote:
Originally Posted by Big Chief XCR View Post
Thanks got it figured out no piston holes or skirt damage plugs good turns out just needed a good carb cleaning runs great now that its gonna b around 40 degrees and the snows gonna dissapear! DAMN IT!

How can the crankcase case problems like i was having???
Sorry.. Don't follow the question.

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1998 Indy 440: https://plus.google.com/photos/11364...10516040672513

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post #12 of 20 (permalink) Old 01-03-2013, 10:04 PM Thread Starter
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joshkinder said drain the crankcase that can cause issues. What issues?
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post #13 of 20 (permalink) Old 01-03-2013, 10:05 PM
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oh...

Well, fuel in the case can cause issues with starting and running correctly. It can also lead to premature failure of bearings and such since the fuel will wash away the oil that's supposed to be coating those parts.

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post #14 of 20 (permalink) Old 01-03-2013, 10:09 PM Thread Starter
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aww..

would the excessive fuel pouring in the cylinder cuz of a carb problem get fuel in the crankcase? Is there any way 2 tell if there is fuel in the case?
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post #15 of 20 (permalink) Old 01-03-2013, 10:17 PM
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Yes, a carb issue can dump excess fuel into the case. When a bunch of extra fuel gets to the carb, it will naturally "flow downhill" into the top end of the motor and then drip down into the bottom end of the motor (the case).

There is a small drain plug in the front of the case for each cylinder. Look near the bottom, under the exhaust, and directly under each spark plug. Pull those and see if anything comes out.

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post #16 of 20 (permalink) Old 01-03-2013, 10:20 PM Thread Starter
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will that drain just the excess gas or the oil as well i would assume a drain for the case would drain the case oil???
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post #17 of 20 (permalink) Old 01-03-2013, 10:25 PM
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There is no case oil on a two stroke. If there's gas in there, drain it and get the sled running to introduce fresh oil from the pump. Shut it down by turning the fuel posts and letting it idle until it dies. It will take you a few extra pulls to start it next time, but there won't be any fuel in the case to wash away the oil and cause other issues.

Ofcourse, if there's no fuel in the case, you don't need to do this.

2012 Rush 600 Pro-R: https://plus.google.com/photos/11364...CObw59TN6NWvJg
1998 Indy 440: https://plus.google.com/photos/11364...10516040672513

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post #18 of 20 (permalink) Old 01-03-2013, 10:30 PM Thread Starter
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oh alright thanks got alot 2 learn!
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post #19 of 20 (permalink) Old 01-03-2013, 10:34 PM
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We all do. But if we help one another, it makes it a little easier.

2012 Rush 600 Pro-R: https://plus.google.com/photos/11364...CObw59TN6NWvJg
1998 Indy 440: https://plus.google.com/photos/11364...10516040672513

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post #20 of 20 (permalink) Old 01-03-2013, 10:36 PM Thread Starter
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Well said! i shouldve signed up for this forum along time ago!
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