I had two of those 076's at one time. This is the remaining one.
When they would set for a month or two, one would be hydraulic locked because the oil pump assembly had a very small leak. It would fill up the cylinder and crankcase with bar oil.
Once I got the oil out of the spark plug hole, it would start, but smoke like a freight train for 10 minutes or so, then clear up.
Although I never was able to find exactly where it was leaking from, if I stored it for more than a couple weeks, I would lay the saw down with the clutch side up to avoid the problem.
That problem is quite common on these saws, so you probably made the right choice by leaving it alone.
I have a bin full of parts for these 1111 saws if you ever need a source.
The AV rubber mounts are repopped on eBay, and are better and cheaper than the originals.
Post a pic when you get it finished. Cheers, Alex
Here's mine. The chainbrake came new from eBay, they are extremely rare,
and cost me $275.00.