start to repair Formula ST 1998 (1994model) - Snowmobile Forum: Your #1 Snowmobile Forum

nprDimas · 07-04-2012, 12:27 AM

Hello Everybody! My name is Dmitry. I'm From Moscow, Russia. But Also I live (A few times in a year) in California-Guerneville.

I've Found a Ski-Doo Formula ST in the Chop of my Friendin Russia. And bring it ti my Home. Here is some fotos:

This is ALL I have. Now- i'm looking for missing parts...

nprDimas · 07-04-2012, 12:31 AM

Can you tell me any other Engine model that suits to my Engine Place, electric etc..?

The snowmobile was sink in water under the house (during russian spring) And in ALL tanks such as fuel tank, oil, gearbox (with spain), engine was filled up with water.

98yota · 07-04-2012, 12:42 AM

Welcome to the forum! With a little work, you'll have a sweet ride! Try alssnowmobile.com or eBay for parts, it seems those are the two main places I find parts for my project. Good luck!

nprDimas · 07-04-2012, 12:55 AM

Quote:

Originally Posted by 98yota

... Try alssnowmobile.com or eBay for parts...

Thank you!
I've found my engine on eBay. The price is 600USD, but I want it! =) Now i'm trying to buy it...

nprDimas · 07-04-2012, 01:19 AM

I have 010 Pistons/ One is damaged- which piston assembly to buy? What number or model?

nprDimas · 07-04-2012, 10:00 PM

I need help! i've found Ski Doo Cylinder Head Formula Plus 521- will it seut to me?

**RJ Gleason** · 07-05-2012, 06:24 AM

Type 467 engine is also the size of it.
You can replace it with a larger engine if you choose.
The 521 head will not work on the current engine.

MEGASNOWMACHINE · 07-05-2012, 12:57 PM

ive got two of those identiacll sleds and engines one runs fine with low miles. ive got every part.

nprDimas · 07-05-2012, 06:38 PM

Quote:

Originally Posted by RJ Gleason

Type 467 engine is also the size of it.
You can replace it with a larger engine if you choose.
The 521 head will not work on the current engine.

why not? in what is the difference?

nprDimas · 07-05-2012, 06:45 PM

and what should i change- cilinders, cranchshaft? or what?

nprDimas · 07-05-2012, 07:01 PM

Quote:

Originally Posted by MEGASNOWMACHINE

ive got two of those identiacll sleds and engines one runs fine with low miles. ive got every part.

And what can you say?

MEGASNOWMACHINE · 07-05-2012, 07:22 PM

ill sell u whatever u need if u want

**smallengineguy** · 07-09-2012, 06:23 AM

The two engines have different stroke lengths and the cylinders are different. You need the 467 cylinder/head. Replace the whole engine. Much cheaper at this point.

nprDimas · 07-09-2012, 08:38 PM

i bought a lot of parts on eBay and now is just waiting for them in California =) i'm not sure that i wil seccess, but i try! =)

nprDimas · 07-09-2012, 09:09 PM

Tell me- what type of fuel to use in russia? what oktan number-76-80, 92,95?

**smallengineguy** · 07-10-2012, 06:44 AM

Here it is at least 87, so I would say 92.

nprDimas · 07-10-2012, 12:27 PM

Quote:

Originally Posted by smallengineguy

Here it is at least 87, so I would say 92.

Thanks a lot!

nprDimas · 07-10-2012, 12:46 PM

Maybe somebody tells me what parts are usually damage? to buy them for fast repare? i did not have any snowmashine before. I think that it is pistons, drive belt... else?

nprDimas · 07-10-2012, 02:35 PM

how to make electric start and maybe reverse?

**smallengineguy** · 07-11-2012, 07:24 AM

You need to change the chaincase to have reverse. Elec start is very complicated.