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Old 01-20-2012, 10:04 PM   #1 (permalink)
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95 Polaris 650 RXL

Hey guys, I got a problem that I hope someone can help me with, here's the deal:

Bought this from my friend, and it was running great. My buddy delivered it in the summer, and when there was snow in the ground I pulled it out and started it up. It ran for about 5 - 10 minutes in the garage, but then just stopped and wouldn't start again.

It sat for 2 years. This past summer I pulled the fuel lines out, replaced the filters, and put a new line in the tank, along with new brass fittings I hunted around online for.

Put everything back together, and just bought a new battery today. Charged it up, put it in, and tried to start it... and, nothing. I can hear the pump running for a couple seconds when I pull the pull-start, but it wont start. I pulled the fuel lines out at the filters and tried to start it to see if it would at least pull the gas from the tank, but it wont. When I pull I try to feel any suction from the line that goes to the pump, but I don't really feel any suction, but I definitely hear the pump run for a couple seconds, but it sounds like it's running dry. Do I have to prime the system first or something?

Any ideas? Thanks in advance for any help.
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Old 01-21-2012, 06:52 AM   #2 (permalink)
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Make sure that you hooked the battery up the right way.
If you hooked it up backwards, the pump will run the wrong way.
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Old 01-21-2012, 07:48 AM   #3 (permalink)
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Just verified, they are hooked up right. I only have a couple gallons in there to start, should I fill the tank at least half way? My issue is that I can hear the "rrrrrrrrrrrr click" of the pump every pull, but I don't feel any sucking from the line.

Could it be a bad pump?
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Old 01-28-2012, 10:49 PM   #4 (permalink)
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guys i have a 95 rxl that runs great 30% of the time and the rest of the time it bogs out like on old motoski or kawi twin with a bad plug put brand new champions in it and it didnt help much i just bought it the other day from an older guy that knew nothing about it didnt know how to start it couldnt find the choke he was clueless every now and then i hit the cold ish start button and it either come out of it or about dies natemanson@rocketmail.com
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Old 01-29-2012, 05:49 AM   #5 (permalink)
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Quote:
Originally Posted by northeastnate View Post
guys i have a 95 rxl that runs great 30% of the time and the rest of the time it bogs out like on old motoski or kawi twin with a bad plug put brand new champions in it and it didnt help much i just bought it the other day from an older guy that knew nothing about it didnt know how to start it couldnt find the choke he was clueless every now and then i hit the cold ish start button and it either come out of it or about dies natemanson@rocketmail.com
try putting this on a new post more people will see it it may get lost in this one welcome to the forum
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Old 01-29-2012, 07:11 AM   #6 (permalink)
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how do i post a new one ?
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Old 01-29-2012, 07:13 AM   #7 (permalink)
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go to the forum button scroll down to polaris then it will have a tab for new post
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Old 01-29-2012, 09:13 AM   #8 (permalink)
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Quote:
Originally Posted by Squirreljester View Post
Just verified, they are hooked up right. I only have a couple gallons in there to start, should I fill the tank at least half way? My issue is that I can hear the "rrrrrrrrrrrr click" of the pump every pull, but I don't feel any sucking from the line.

Could it be a bad pump?
Try disconnecting the other side of your pump to see if fuel is "coming" from the pump instead of suction "to" the pump.
If you have fuel coming from the pump, the next step is to go through your carbs real well and make sure you have new plugs and spark.
If it sat for two years, I would definitely get rid of all the fuel in your tank, lines, and carb bowl and put in fresh gas. Changing your filter is a good idea as well.
Try all this and post back.
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Old 01-30-2012, 01:21 PM   #9 (permalink)
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Sorry, I've been busy with other stuff.

I've already replaced the fuel line in the tank, in-tank pickup; main; and return line brass fittings, brand new gas, new battery, and new spark plugs.

I put more gas in the tank and let it drain down to the pump, cycled the pump a couple times, and now I have pressure enough that the gas sprays if I give it a little gap at the connection to the filter.

Now I can start it, but with some starter fluid (not much, just a quick spray), and I can keep it running, but it runs pretty rough, and it doesn't seem to matter if I put it at partial throttle or full, it just stays running at the same revs, kind of like the throttle position doesn't matter, other than it sounds boggier when I have it at full throttle.

No lights on the computer, any ideas?
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Old 01-30-2012, 01:29 PM   #10 (permalink)
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Test the TPS to see if the resistance reading will vary as you move the throttle.
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Old 01-30-2012, 01:39 PM   #11 (permalink)
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Test the TPS to see if the resistance reading will vary as you move the throttle.
ya pm him back foth on other forum that was one thing i suggetsed

Last edited by scrammy650; 01-30-2012 at 01:59 PM.
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Old 01-31-2012, 08:51 AM   #12 (permalink)
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Like I said, the next step is to clean the carbs. If it sat for 2 years it needs it. Pay particular attention to the choke.
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Old 01-31-2012, 09:00 AM   #13 (permalink)
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Like I said, the next step is to clean the carbs. If it sat for 2 years it needs it. Pay particular attention to the choke.
i think its still efi not carb:
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Old 01-31-2012, 09:19 AM   #14 (permalink)
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It may be "both". The fact that he emptied the fuel from the tank and lines to the carb and it finally started would indicate fuel. He obviously as an electrical issue as well though with no light on the computer. If he cleans the carbs (which they need anyway after 2 years), it will help remove them from the diagnosis.
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Old 03-02-2012, 07:26 AM   #15 (permalink)
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Quick update, I got it running, once I had fuel pressure, and a few sprays of starter fluid, and I let it work all the built up gunk in the engine, it fired right up. I actually had it out for about 15 minutes on the last day it snowed here in Illinois. I just need to touch things up this summer, and it'll be ready to ride next winter.

Any suggestions for things to watch out for while I'm out riding? Like, known things that happen with these sleds?
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Old 03-02-2012, 08:10 AM   #16 (permalink)
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oh ya. i can help you out there.

keep a good battery in it. number one thing. you'll start to figure out when your battery is running low because it will not idle well.

the three relays by the ignition switch have given me trouble from time to time. something to keep in mind if it's not starting for some reason.
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Old 03-02-2012, 08:32 PM   #17 (permalink)
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Thanks, I'll keep an eye out for that stuff, but I JUST bought a brand new battery, so I should be good for a couple years with it.

I Had it out again tonight because it actually snowed like 4" by me, the thing runs awesome. 1 thing though, I had it out in a field, trying to open it up, and it would rev up to 80+ but when I gave it full throttle, it would fall on it's face. I could let off and get on it again, and it would take off, but again at full throttle it would fall on it's face. My friend who I bought it from burned up 2 of the pistons so he had it bored out and put new rings, pistons, etc. in it and had it running. He said it happened because he ran cheap gas and it ran lean.
I have 93 octane in it right now, but should I run a bottle of heat in there as well? Heat is that yellow bottle of stuff that prevents your gas from freezing, and it's 99% methanol. Or maybe octane boost, or should I not worry about what it's doing? I don't want to burn it up again.

Also, I've seen some "chips" on eBay, do those F up the sled or are they pretty decent to run?
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Old 03-02-2012, 09:21 PM   #18 (permalink)
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stay away from the chips. the only legitimate "chip" is a replacement fuel map for when you change out the exhaust to an aftermarket one. However you don't have pipes so no need for this. better to keep it stock in that regard.

There should be no need to run 93 octane in there, it will run fine on 89. You can test how lean/rich it is running by examining the plug color. There are good pictures in the how-to section showing what you want your plug color to look like.

A lean burn down screams air leak to me, not cheap fuel. hopefully he had the seals replaced during the rebuild.

However, just a thought, the throttle problems you are experiencing may be due to clutching. a broken primary clutch spring can act like this. where you get up to 80ish, and it falls on its face until the speed drops a bit, then it acts fine again. just a though you could easily check that out.

The heat is for absorbing water from the gas. seafoam may be a better product, although I am leery of running these products with injectors.
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1992 Polaris RXL 650 EFI
1990 Skidoo Formula MX 470
1997 Skidoo Grand Touring 500
1997 Arctic Cat Pantera 580
1979 Ford F150
~360 5.9L, Edelbrock intake, 4bbl carb, 4 speed, divorced transfer case, 3" body lift, 3" suspension lift, 33's, redone interior.
2003 Dodge 3500 srw 6spd

1981 Suzuki GS850L

And, I am a firm believer in the Buffalo Theory!
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Old 03-03-2012, 06:06 AM   #19 (permalink)
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Also, what is the engine rpm when it is doing this.
Over revving will also cause this kind of performance.
This would be related to the secondary needing adjustment.
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'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

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