slednutz tech lounge
 

Go Back   SledNutZ > On the Snow... > Polaris > Tech Info
Ibreakstuff Says: Time to start the snow dance!
Register FAQSled Chat Members List Casino Media Garage Search Today's Posts Mark Forums Read Statistics

SledNutZ Quick Info
Friends of SledNutZ: JohnDee
GreenHulk.net PWC forums
Great Lakes Jeep Thing
Team Belly Pan Sled Forums
PEPPERMILL RENTALS IN THE YOOP! There's no where better to stay in the Rockland/Mass area!
Web hosting by Floogy

89 Indy Classic 500 Vacuum Lines

Tech Info

 
 
Thread Tools Display Modes
  #1  
Old 01-29-2013
mainestratman's Avatar
mainestratman
340 Fanner
mainestratman's Info
 
Join Date: Jan 2013
Location: Northern maine
Posts: 58
Default 89 Indy Classic 500 Vacuum Lines

Greetings and salivations.. I'm going to jump with in with n00b questions because I'm awesome like that.

I've got a PDF of the Polaris master Service Manual 1985-1995 (Volume II), which has been tremendously useful thus far in tweaking my new-to-me baby.

I spent a good amount of time tinkering over the sled when I was at work and using an empty ambulance bay (warmth!), but now that I'm home with the sled, I have no such luxury..

Anyways..

I've got the vacuum lines figured out for the most part... but I'd like to know from someone who has seen this model.. do I connect the carbs directly to each other on the nipples facing each other? Per the manual above on page 6.14 it shows a dotted line and says "Some models have interconnecting lines between each carb". I'm assuming this is one of those models since there are lonely nipples and chunks of tubing laying in the pan..?

Thanks!
__________________
This is my signature. It's not much, but it's mine.

Last edited by mainestratman : 01-29-2013 at 12:43 PM.
Reply With Quote
  #2  
Old 01-29-2013
Rubi's Avatar
Rubi
Boonditcher
Rubi's Info
 
Join Date: Nov 2007
Location: Alexandria, MN
Posts: 3,617
Default

If I were you, I'd experiment and see how it runs with different options. I've seen older carbs with a length of tube going nowhere; just wrapped around the carb. A lot of sleds have the carbs vented into barbs in the airbox. I've also seen these "lonely nipples" capped by a vacuum cap, doing nothing. I haven't seen carbs connected to each other, but that doesn't mean it isn't done on some models. My experience is pretty limited on older sleds.
Reply With Quote
  #3  
Old 01-29-2013
mainestratman's Avatar
mainestratman
340 Fanner
mainestratman's Info
 
Join Date: Jan 2013
Location: Northern maine
Posts: 58
Default

Quote:
Originally Posted by Rubi View Post
If I were you, I'd experiment and see how it runs with different options. I've seen older carbs with a length of tube going nowhere; just wrapped around the carb. A lot of sleds have the carbs vented into barbs in the airbox. I've also seen these "lonely nipples" capped by a vacuum cap, doing nothing. I haven't seen carbs connected to each other, but that doesn't mean it isn't done on some models. My experience is pretty limited on older sleds.
It's a good thing I enjoy experimenting. :-)
__________________
This is my signature. It's not much, but it's mine.
Reply With Quote
  #4  
Old 01-30-2013
OCR's Avatar
OCR
Summer Sux!!
OCR's Info
 
Join Date: Sep 2007
Location: Groton NY
Posts: 4,642
Default

Mostly they are not connected together, those are just vents and should have a section of tubing just hanging straight down.
__________________
Old Cat Rider

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


http://twintiersleddin.proboards76.com/index.cgi


Quote:
we are all given sh*t in life, but some of us learn to turn it into fertilizer and grow from it, and some us try to fling it on others like monkeys
Reply With Quote
  #5  
Old 01-30-2013
mainestratman's Avatar
mainestratman
340 Fanner
mainestratman's Info
 
Join Date: Jan 2013
Location: Northern maine
Posts: 58
Default

Thanks, OCR.

Although, having disassembled and cleaned the carbs, I now have a much better understanding where all these vents go to.. they lead straight into the float chamber.. it makes sense why they have the one-way valves on the end of the tubing now..

Although, if I were to connect the carbs together, wouldn't that help "equalize" the pressure in the chambers, or am I just WAY over-thinking this..? lol
__________________
This is my signature. It's not much, but it's mine.
Reply With Quote
  #6  
Old 01-30-2013
OCR's Avatar
OCR
Summer Sux!!
OCR's Info
 
Join Date: Sep 2007
Location: Groton NY
Posts: 4,642
Default

It could, but you would have to remove the valves for it to work.
__________________
Old Cat Rider

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


http://twintiersleddin.proboards76.com/index.cgi


Quote:
we are all given sh*t in life, but some of us learn to turn it into fertilizer and grow from it, and some us try to fling it on others like monkeys
Reply With Quote
  #7  
Old 01-30-2013
mainestratman's Avatar
mainestratman
340 Fanner
mainestratman's Info
 
Join Date: Jan 2013
Location: Northern maine
Posts: 58
Default

Done deal then... dangly tubing for me. ;-)
__________________
This is my signature. It's not much, but it's mine.
Reply With Quote
  #8  
Old 02-14-2013
Steepndeep
340 Fanner
Steepndeep's Info
 
Join Date: Feb 2013
Location: S.E. Idaho
Posts: 5
Default

The two Indy 500s (89 Classic and 91 SKS) have two vent nipples on each carb. The center nipples have a very short section of tubing that connects to a T and another section of vent tube goes down to a one way valve. The outboard nippes have a short section of tube that also connect to Ts with one leg then going down to a one way valve and the other leg is connected to a long tube that runs up over the air box and under the handle bar pad and is clipped to the steering shaft with one of the spring clips that have the two small places to secure the tubing. The Polaris parts diagram, however shows the two center nipples connected to a T with the tube running down to the one way valve and the two outer nipples have a vacumn cap plug over them. Most of the machine I've seen run the outer lines as I described initially.
Reply With Quote
  #9  
Old 02-15-2013
mainestratman's Avatar
mainestratman
340 Fanner
mainestratman's Info
 
Join Date: Jan 2013
Location: Northern maine
Posts: 58
Default

Quote:
Originally Posted by Steepndeep View Post
The two Indy 500s (89 Classic and 91 SKS) have two vent nipples on each carb.
<snip>

Thanks, Steep.. that's what I surmised from the drawings... I haven't even started looking for them, but do you know of a source for those valves, just off the top of your head?

Thanks!
__________________
This is my signature. It's not much, but it's mine.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 11:17 AM.


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 2007 Slednutz.com