Generally a temperature-related question, it is probably 10W30. But it could be another weight. Manuals are free for download from Toro at their site, see link.
The correct ratio for that particular snowblower engine is 50 parts fuel to 1 part two-stroke engine oil.
i need a model number for the engine of a toro zmaster model # 78491
There are many places one can purchase "Toro Snowblower Parts." In addition to the official Toro website, one might also search the auction website, eBay.
WalMart
.030
32:1
You can find parts for a toro snowblower at WalMart. WalMart is a store that sells many items online. You can purchase a snowblower and parts from WalMart and they will have it delivered to the store for free or to your home for a nominal cost.
32:1
According to the owner's manual, the correct oil/gas ratio for a Toro s200 snowblower is 32:1, or 4 ounces of oil for every gallon of gas.
it is going to depend on where it is leaking from
50:1
Autolite lists it as 2976 or SE2976DPT. I haven't installed the plug yet so I can verify.