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Polaris General Discussion

 
 
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  #1  
Old 12-28-2013
fanboyz1231
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Cool Willing to learn???

Hey fellas,so i purchased a poaris 500 indy EFI 93',so for this winter i will just be bringing it to the shop,get him to get er running so i can ride it.

BUT...this upcoming summer i will be setting up one of those tent garages in my backyard.

FYI,im only 17

so having a little-no background in engines and snowmobiles in general, i am planning to completely pull this thing right now to the bare bones, and fix what ever needs to be fixed,clean what needs to be cleaned and replace what need to be replaced

in giving this bare information, is it safe for me to start doing this project?(when i pull something apart,it wont explode or anything on me??)

ill be labeling and taking pictures on how everything goes together, and im generally pretty good at this type of stuff


(it must be a disorder i have, anything that i own,i enjoy taking it fully apart and rebuiling it,so that i fully understand how it work)

my neighbour is a firetruck mechanic, so if shit goes down i can always ask for help



SO here a are a few question

1.Is it safe
2.Is this a good sled to do this on?
3.are parts expensive on this sled?
4. There is a sled wrecker close to where i live...is this chasis/body capable of holding a bigger motor?and if so...which motor could i put in there?(without welding to much)
5.Is this sled simple,but complex enoph that i will walk away with a good understanding on how sleds work?


once again,i sincerely thank you for all of your help
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  #2  
Old 12-28-2013
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Personally, I wouldn't really want to do it with an EFI sled of that vintage. Are you good with electrical testing and whatnot? If you aren't, you'll get to know MrHolmquist on Snowmobilefanatics really well. You should be able to put a bigger motor in that chassis pretty easily. All the bigger motors of that vintage were triples, and in my opinion, they're a handful. I mean, you have to do everything 50% more than on a twin.
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  #3  
Old 12-29-2013
fanboyz1231
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Quote:
Originally Posted by Rubi View Post
Personally, I wouldn't really want to do it with an EFI sled of that vintage. Are you good with electrical testing and whatnot? If you aren't, you'll get to know MrHolmquist on Snowmobilefanatics really well. You should be able to put a bigger motor in that chassis pretty easily. All the bigger motors of that vintage were triples, and in my opinion, they're a handful. I mean, you have to do everything 50% more than on a twin.
Thanks for the reply!

for the electrical side of things...i just started an electrical apprenticeship doing residential,commercial work...during highschool i took a few courses in computer circuitry,but im unfamiliar with the EFI circuit board,how it functions

but that basic knowledge should get me half way there!


is there anything that i should be concerned with(compression)

i know that for a sled to have good compression,they should be even,and to the sleds specification on how many PSI,when im pulling this thing apart, will that PSI need to be released at any point??

and will i be able to refill that PSI with a 900psi air compressor??


Once again,thanks
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  #4  
Old 12-29-2013
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There's only compression when the piston rings are above the ports in the cylinders. I don't think a cylinder ever holds compression when the motor stops spinning. The compression in the combustion chamber will force the piston down enough to release the compression out of the exhaust port before the crank stops completely. Pulling the spark plugs out completely releases all compression.
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  #5  
Old 12-29-2013
fanboyz1231
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alright perfect,thanks

if i go ahead and replace all the bad seals in the entire motor,will it give me better compression??once again, new to this

and by any chance do you know of a website online that has a large selection of parts,aftermarket parts?
i know of a few,such as ebay,a couple others just when you google search for parts

what type of lube company/ lube grade do you use for the seals on the engine?or is it special to that sled?

any suggestions?Thanks


and in your opinion,what is the possibility for success on this project after i put everything back together?

Once again,thanks for not getting frustrated at my "noobieness", this is my first sled, everyones gotta learn somehow!
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  #6  
Old 12-29-2013
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Go through some of the threads on the site and look for pictures of engines that are torn down. There are metal rings that fit in grooves around the pistons. These rings seal the area between the piston and cylinder wall. If your cylinders or pistons are scored (scratched), boring and honing the cylinders, and putting in new pistons and rings will be required. If your engine already has the compression it's supposed to have, new rings or pistons won't really change anything.

I'd recommend that you look for a blown up sled to fix. Why put money into something that doesn't need it? Or doesn't your sled run?
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  #7  
Old 12-29-2013
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Quote:
Originally Posted by fanboyz1231 View Post
alright perfect,thanks

if i go ahead and replace all the bad seals in the entire motor,will it give me better compression??once again, new to this

If your rings are good and your compression is pretty close to what it's supposed to be, you won't really notice any difference by putting new parts in. If the old stuff is shot, yes, you'll get better compression.

and by any chance do you know of a website online that has a large selection of parts,aftermarket parts?
i know of a few,such as ebay,a couple others just when you google search for parts
Dennis Kirk, or Shadetree are what I use. Some parts you have to get from Polaris

what type of lube company/ lube grade do you use for the seals on the engine?or is it special to that sled?

The only seals I know of are the crank seals. I just spread a little of whatever happens to be in my greasegun on them so the case halves slide over easily. The crankcase halves are sealed with a special sealant. I used Motoseal. I think that's made by Permatex. Others say the best stuff for sealing cases is Threebond.

any suggestions?Thanks


and in your opinion,what is the possibility for success on this project after i put everything back together?

Should work if you pay attention to details and you heed expert's advice. The probability of going over budget is pretty high.


Once again,thanks for not getting frustrated at my "noobieness", this is my first sled, everyones gotta learn somehow!
If you aren't an arrogant prick, everyone on this site should be pretty tolerant of your questions.

Last edited by Rubi : 12-29-2013 at 02:07 AM.
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  #8  
Old 12-29-2013
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The EFI system on these machines is a "dumb" system as it uses basically four inputs to control fuel/air mix.
The ECU mapping is very basic.

It has an air temp sensor in the air box, a coolant temp sensor, a throttle position sensor, and a barometric sensor.
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  #9  
Old 01-01-2014
fanboyz1231
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Thanks for the help fellas,just got back from a sledding weekend


if im looking for a blown up sled,what type of sled do you reccomend to start with? im fairly handy with my hands,but not to into engines yet.

im willing to put maybe 1200-1800 into the broken sled,and maybe 700 into parts to make her mint?? is that a good aproximation??

suggestions on sleds to do this to?

should i stay away from certain sleds?
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  #10  
Old 01-01-2014
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The problem with recommending a sled to buy blown up is that the good sleds never blow up.

I saw a '99 XC 500 that siezed for $800 in Minnesota a week or so ago. That's a good deal. Probably you'd stay under the $700 mark fixing something like that. Popular sled, so used parts are available for reasonable prices.

I'd say late 90's Indy 500's would be a good sled to look for. Better suspension than your '91, and the motor is cheap to rebuild because it has steel sleeved cylinders. No need to spend over $200 per cylinder to have your cylinders replated. Just take your pistons to the machine shop and have them bored to match. You'd be way under budget if you did one of these. You could probably do two of them this summer for the money you listed. One to ride and one to sell.

Around here in Minnesota, you could probably get a 2001 to 2005 Edge Polaris for the price you suggested. I would only look at 500's and 600's in your situation. I wouldn't mess with an 800 yet, and 700's were awesome so they kind of command a premium price. You might need to spend around $900 on the motor, but you're getting a sweet sled if you get it going.

Those are the Polaris sleds I'd look at, and Polaris is really all I know. OCR could probably tell you a good Arctic Cat to look for. You're Canadian, so you might want to support Ski Doo, but you're on your own there. Nobody on this site likes Ski Doo except Dirty Harry, and he's better at making babies than buying or fixing sleds, so you don't want to listen to him.

When you're buying older used sleds, regardless of brand, always look for the most popular models that sold like hotcakes. Then you can always find used parts. On the older sleds, some parts aren't available from the factory anymore, and the ones that are cost a fortune. The engine rebuild parts are available from the aftermarket, but some things you find that need replacing will only be available from the manufacturer.
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  #11  
Old 01-01-2014
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You betcha, any of the later model ZR/ZL Cats, great ride and lots of parts available.
And, with the longer travel suspensions, ride and handling is hard to beat.

If you are feeling real adventurous, a ZRT in 600/800 (triples) or Thundercat 900/1000(also triples) can give you massive power.
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Last edited by OCR : 01-01-2014 at 10:01 PM.
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  #12  
Old 01-01-2014
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Quote:
Originally Posted by Rubi View Post
Nobody on this site likes Ski Doo except Dirty Harry, and he's better at making babies than buying or fixing sleds, so you don't want to listen to him.
That has to be the funnest thing I've read on here in awhile lmao.
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Nobody on this site likes Ski Doo except Dirty Harry, and he's better at making babies than buying or fixing sleds, so you don't want to listen to him.
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  #13  
Old 01-01-2014
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OCR, I can't believe you recommended a ZRT 800 to a new guy! Gerbil knows that sled as a ZR Trouble, and he knows of what he speaks because that was his first sled. That sled didn't prevent him from looking for more trouble though. Now he looks for trouble in the form of 800 IQ Assaults.

Fanboy, I'd probably stay clear of 800 twins. The Suzuki Arctic Cat 800's are reliable, but Polaris and Ski Doo have lots of trouble making a decent 800.

If you're in Quebec or BC or something this wouldn't work, but why don't you buy my sled? If you live close to Minnesota I might be talked into a little travel. My sled works, so you could beat it like a rented mule the rest of this winter and then fix on it all summer. I'd have to think what I need for it, but it wouldn't be much over a thousand. Cheapest Edge Chassis sled you'll find anywhere. All you need to know is it's a 600 VES Edge chassis sled and it's awesome! Anyone who rides with me can attest to this.
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  #14  
Old 01-01-2014
fanboyz1231
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Thanks for all the replies!

There is a sled wrecker about 2 hours away from where i live,and i called in and he told me that he has a;

4 stroke arctic cat touring(i belive he said it was seized)-750$
99 polaris rmk 600(something with the engine,forget what he said tho)-650$
07 polaris iq 600(needs new track,electrical)-1200$

out of the list of sleds that he had,those were the ones that stood out to me...in all of your opinions,which is the best to hit up?

how expensive is the plastic for the 07 polaris's?because it would need all brand new plastic apparently

and most of all,which is the best for a beginner to start off on?and are those prices reasonable?
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  #15  
Old 01-02-2014
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I wouldn't mess with a 4-stroke. That's way too hard to work on. The IQ is interesting because it's a very recent chassis, but you could go way over budget real fast on that one, and still have a sled that doesn't run. It's not as bad to work on as the 4 -stroke, but they're not easy, either. The '99 RMK is the only one of those three I'd consider. That's an easy sled to work on, and parts are plentiful. Rebuild kit should be relatively cheap, and you'll have a pretty reliable sled when it's done. If the crank and cases are alright, that would be a good sled to start with. I don't know what Canadian prices are like, but if the whole motor is grenaded, I wouldn't pay that much. If the bottom end is good, you should be able to have a nice, fresh motor for between $900 and $1000.
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