Hello from Menomonie, WI!

[Funfettie]

Hi there,
Im Tanner, 20 years old, current mechanical and airflow engineering student at UW Stout and full time employee for Andersen Windows. Last week, we had 14" of sow fall, and i watch my neighbor across the road rip around on his sled, and thought, 'I have always wanted a snowmobile, so im gonna buy one!' several hours later, i picked up a 1982 Polaris Indy 600 for $340. shes not pretty, but it runs pretty well, and starts nicely! Looking forward to learning how to ride on this sled, and then hopefully upgrade to something newer soon!

Also, quick question. Theres no way this thing has oil injection, so it has to be a pre mix fuel. Right? anyone know the ratio I should run? I have seen 40/1, but just wanted to double check!

Thanks, look forward to learning and meeting new people!

~Funfettie~

[BC_Dan]

It probably came with oil injection. Look for the oil tank under the hood and lines that go toward the cylinders. If it has been deleted, 40:1 is plenty safe. With quality oil, you can probably go 50:1.

Welcome to the forum and to the addiction!

[Polaris650freak]

My buddy lives by you and goes to stout.


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[Polaris650freak]

And 82 did not have oil injection. 84? If i remember right was first year for the 600 to have oil injection.


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[meburdick]

Welcome!

Here's a great resource for your vintage machine: Vintage Snow

Check the Polaris link 3/4 of the way down the main page and then click the tabs to the different resources. I believe you'll find the repair manuals to be very helpful.

Even though you believe it runs well now, you should consider tearing down the carbs and rebuilding them. The process will give you a sense of accomplishment, will get them all nice and clean, and start you down the road of understanding 2-stroke engines.

[Funfettie]

Thanks for all the replies everyone! I was told it was an 82, but it looks like 600's wernt even made in 82, so 84 sounds right. Ill go check for the oil reservoir now!

Originally Posted by meburdick

Welcome!

The process will give you a sense of accomplishment, will get them all nice and clean, and start you down the road of understanding 2-stroke engines.

I have full intentions of rebuilding the carbs, as it had been sitting for 4 years before getting started up a few weeks ago. Love tearing into engines, and learning more about them.

[meburdick]

Check the right side of the tunnel up near the foot well. There should be a sticker there with a model number and/or manufacture date. The first three digits of the model number will be 0xx with xx representing the model year. The manufacture date is often the year prior to the model year (much like cars).

[Polaris650freak]

They had a 83 Indy 600 that had the long taper crank end and no oil injection.


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[Funfettie]

Just searched the engine bay over, and removed the air box, and theres no oil reservoir.. Also started cleaning the air box, and the foam is falling apart, and theres a TON of crap in the bottom of the box. Anyone know a place to get a replacement filter/air box? its really bad..
Thanks!

[Polaris650freak]

Just clean the air box. You can get the foam from the dealer for a indy 650 they fit also. The oil tank would be right next to the coolant tank if it had it. Post a pic of the sled


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[Funfettie]

Ill be sure to post a pic up tomorrow when i get home from work, too dard out now. I saw a pic of a indy 400 engine bay, and it looked like the oil tank was between the air box and the coolant pipe, and theres a large open space on my sled where i think it should be. Thanks for the advice on the filter, to it cleaned out pretty well, just need the foam!

[meburdick]

There doesn't appear to be anything specific on the vintagesnow.com site to say whether / if the Indy 600 in that era was oil injected at any particular time.

It DOES say, however, that the mix ratio after the break-in (you think it's done with the break-in yet? ) should be 40:1.

[Funfettie]

Originally Posted by meburdick

It DOES say, however, that the mix ratio after the break-in (you think it's done with the break-in yet? ) should be 40:1.

Meaning it IS a premix. Cool, got that part solved! Now i just need to figure out why its tough to start, and find the air filter and i should be in business!

[meburdick]

Originally Posted by Funfettie

Meaning it IS a premix. Cool, got that part solved! Now i just need to figure out why its tough to start, and find the air filter and i should be in business!

Sorry... My post wasn't as clear as it should have been...

The vintagesnow.com site doesn't have any information that says whether the 600 motor is injected or pre-mix, regardless of the year. It has a general statement in the manuals that says for the models without oil injection, the ratio is 20:1 for break-in and 40:1 afterward.

The codes for the 83 and 84+ motors are different. That first year was a pre-mix, but the changed code could indicate that the 84 and up models were injected.

[RJ Gleason]

Welcome and Happy Trails

[smallengineguy]

Welcome aboard!