Welcome to SBF stew. Here is a link to the Canadian Sears parts site. I couldn't find any model numbers that start with 71, but most snow blower model numbers start with 950.
Sears Parts Diagrams - PartsBay.ca
This model is close to the one you have-
C950-52109-2.pdf - Google Drive
It looks like you have an 8 hp Tecumseh motor and this is the service manual for it. Your engine model number is stamped into the recoil shroud and will be under the electric start button. You will need that number when looking for parts.
Tecumseh L-Head Engine Repair Manual 3 To 11 HP | Repair and Parts Resource (barrettsmallengine.com)
I hope this helps. Good luck.

 

ALOHA!!!!!!!!

 

Here is a link to 52108-1 sears s/b . No idea if this will help but...

Craftsman snowblower Parts Manual C950-52108-1

Craftsman snowblower Parts Manual C950-52108-1

www.rpmpieces.com

 

welcome. what part of Canada are you from?

i personally wouldn't put much money into the machine. they are really not that great of a machine. they are pretty much useless unless you do the impeller mod and they are a pain to do the impeller mod to. they also have a smaller impeller than the average machine so they are much slower at getting the snow off the driveway compared to similar sized machines. i know i am planning to finally sell mine off this year as i am tired of it sitting around as my backup and never getting used. i think i will be lucky if i get $100 out of it.

 

Did you ever find anything for this model? I have the exact same and I'm coming across the same issue with finding a manual, I'm trying to figure out what type of oil it uses

 

These ancient Craftsmans are all very similar, any manual from a mid 80s Craftsman will supply enough exploded diagrams enough for you to tinker with it.

As for exacts like belts and discs, bring the part to a small engine shop, they will sell you what you need.

 

Use 5W30 oil in the machine, synthetic is better, but conventional oil is fine to use.