1991 Polaris RXL SKS - Snowmobile Forum: Your #1 Snowmobile Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 08-10-2008, 09:40 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: Minnesota
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
1991 Polaris RXL SKS

I have a RXL with some issues. When it fires it sputters out almost instantly. The plugs are new, when I turn the key the fuel pump runs, the plugs get wet and there is plenty of spark. But the sled just doesn't run. I don't think the computer is storing any codes, the light isn't flashing. Does anybody have any ideas?
truc0011 is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 08-11-2008, 07:37 AM
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 33,273
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
When you take the plugs out and clean them does it do the same thing every time?
The symptoms are pointing to a spark problem, not a fuel problem.
Weak spark will start the engine with dry plugs, but then they get wet and stop firing.

Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

http://www.dcdrifters.net/

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

Rules of this forum are strictly enforced!
RJ Gleason is offline  
post #3 of 14 (permalink) Old 08-11-2008, 10:50 AM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: Minnesota
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RJ Gleason View Post
When you take the plugs out and clean them does it do the same thing every time?
The symptoms are pointing to a spark problem, not a fuel problem.
Weak spark will start the engine with dry plugs, but then they get wet and stop firing.

I tried so many different things yesterday I can't recall what happened after I cleaned them off. I'll try it again tonight and let you know. I did test the spark and it seemed bright and strong....but I'll see what happens tonight.
truc0011 is offline  
post #4 of 14 (permalink) Old 08-11-2008, 07:10 PM
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 33,273
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
The spark may appear to be good with the plugs out, but not when under compression.
Use an inline tester to check the spark.

Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

http://www.dcdrifters.net/

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

Rules of this forum are strictly enforced!
RJ Gleason is offline  
post #5 of 14 (permalink) Old 08-12-2008, 10:41 AM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: Minnesota
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RJ Gleason View Post
The spark may appear to be good with the plugs out, but not when under compression.
Use an inline tester to check the spark.
I figured it out, I pulled the airbox out, and the throttle body off then found that the fuel supply was not connected to the bottom of the fuel pump. The hose had broken. That doesn't explain why the plugs were wet, I assume the hose was partially cracked then broke off all the way. But after I replaced all that the sled fired right up. Man that pump is in the most akward position, I debated pulling the motor but I eventually got the new hose installed. I'd hate to have that hose brake out on the trail. How does a person change the fuel pump on a RXL, do you have to pull the motor out?
truc0011 is offline  
post #6 of 14 (permalink) Old 08-17-2008, 06:43 AM
I am Spartacus
 
smallengineguy's Avatar
 
Join Date: Feb 2004
Location: Milton Mills, NH
Posts: 23,799
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Gotta love the easy fixes!

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
1992 Ski Doo Mach 1 original
2006 Ski Doo MXZ 500SS
1999 Ski Doo MXZ600
Webmaster Evergreen Valley Snowmobile Club
SledNH.com Moderator
smallengineguy is offline  
post #7 of 14 (permalink) Old 09-30-2008, 11:13 AM
Registered User
 
Join Date: Sep 2008
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Question headlights dim and code on efi long dash followed by two short dashes

Hey I just bought a 91 rxl 650 efi and the headlights are dim and the auxillary lights are not showing up at all, we just put in a new battery. any thoughts if this would be related to the stater or the voltage regulator? also is the voltage regulator the same thing as the lighting regulator, just different words??

There is also a code of a long dash and two short dashes in the efi. Not sure what that means.

Any help would be appreciated. Thank you!
cgillen is offline  
post #8 of 14 (permalink) Old 10-01-2008, 06:30 PM
Registered User
 
Join Date: Mar 2008
Posts: 598
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by cgillen View Post
Hey I just bought a 91 rxl 650 efi and the headlights are dim and the auxillary lights are not showing up at all, we just put in a new battery. any thoughts if this would be related to the stater or the voltage regulator? also is the voltage regulator the same thing as the lighting regulator, just different words??

There is also a code of a long dash and two short dashes in the efi. Not sure what that means.

Any help would be appreciated. Thank you!
The flashing led 1 long and two short is code 12 -crankcase temp sensor
it is screwed into the crankcase below the mag side throttle body . There should be a yellow wire going to it which has likely come unplugged.

The Efi system uses a combination voltage regulator and rectifier unit to change the a/c from the magneto to d/c and then charge the battery. It is screwed to the side of the battery box. Do not confuse this unit with the lighting regulator.

The headlight circuit is completely isolated from the efi and the battery and powered by a/c voltage generated in the magneto. The voltage regulator is located on the back of the console below the ignition switch. This is the most likely cause of your dim lights.
mrholmquist is offline  
post #9 of 14 (permalink) Old 10-01-2008, 10:34 PM
TRH- Troll Raising Hell
 
SMFXRSB's Avatar
 
Join Date: Mar 2007
Location: Plymouth Area, MN
Posts: 6,134
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Where in Mn are you from? I will be in the Cities this weekend.

Snow: The other white drug!
SMFXRSB is offline  
post #10 of 14 (permalink) Old 01-19-2010, 04:32 PM
Registered User
 
Join Date: Mar 2009
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i have a 91 rxl 650 efi. i bought it 4 years ago and ive yet to drive it. i only got it started once i looked over everything and put in lots of work trying to figure it out. now i need a cdi box for it witch i can get for 80 bucks but theres still some problems. theres this brown wire that comes out by the battery box and looks like it goes on the battery?? but i dont know! also i havent seen it flash a code since i bought it and it has a new battery and everything. is there some way i can just hotwire this thing to go all the time. im pissed at this thing i just want to drive it allready.
RXL650INDY is offline  
post #11 of 14 (permalink) Old 02-01-2010, 10:41 AM
Registered User
 
Join Date: Feb 2010
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
can u get a picture of this or exact detail of where this wire is coming from??? a picture is ideal.
icedawgs8 is offline  
post #12 of 14 (permalink) Old 02-02-2010, 07:08 AM
Registered User
 
Join Date: Mar 2009
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
turns out it was ust a brown ground wire. i ripped the whole sled apart. i bought the Polaris CLYMER Book and read that a few times. ive been looking at the wiring and theres alot of f*cked wires that i never seen and were all wrapped up and hidden. i bought a CDI off of ebay and that should be coming soon. im going to look a little further into it all and clean it up a bit more.once i got the motor out i found the fuel filter was crushed with a big hole in it, i pulled the bleeder bolts out of the bottom end and old oily s**t came out. looked like oil and coolent with old gas. very milky. im replacing the spark plug wires, some electrical along with fuel lines and filters and the list goes on. should have it back together in a few days though.

Last edited by RJ Gleason; 02-02-2010 at 02:15 PM.
RXL650INDY is offline  
post #13 of 14 (permalink) Old 02-02-2010, 02:25 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: Minnesota
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RXL650INDY View Post
turns out it was ust a brown ground wire. i ripped the whole sled apart. i bought the Polaris CLYMER Book and read that a few times. ive been looking at the wiring and theres alot of f*cked wires that i never seen and were all wrapped up and hidden. i bought a CDI off of ebay and that should be coming soon. im going to look a little further into it all and clean it up a bit more.once i got the motor out i found the fuel filter was crushed with a big hole in it, i pulled the bleeder bolts out of the bottom end and old oily s**t came out. looked like oil and coolent with old gas. very milky. im replacing the spark plug wires, some electrical along with fuel lines and filters and the list goes on. should have it back together in a few days though.

If it was coolant in there you're bound to have more issues....
truc0011 is offline  
post #14 of 14 (permalink) Old 02-09-2010, 07:07 PM
I Ride Polaris
 
Got2bFlyin's Avatar
 
Join Date: Sep 2009
Location: Bloomingdale
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by truc0011 View Post
I figured it out, I pulled the airbox out, and the throttle body off then found that the fuel supply was not connected to the bottom of the fuel pump. The hose had broken. That doesn't explain why the plugs were wet, I assume the hose was partially cracked then broke off all the way. But after I replaced all that the sled fired right up. Man that pump is in the most akward position, I debated pulling the motor but I eventually got the new hose installed. I'd hate to have that hose brake out on the trail. How does a person change the fuel pump on a RXL, do you have to pull the motor out?
i had to pull out the pump to find out a few issues but only had to pull box carbs and fuel line not a whole lot but still its a pain in the a to remove

90 indy 500.
92 RXL efi- needs jug,top end and track
why cant it snow all yr long
Got2bFlyin is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Snowmobile Forum: Your #1 Snowmobile Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome