This video shows the complete restoration of the old Husgvarna TOMOS mz770 chainsaw.
This chainsaw was made by TOMOS in the then Republic of Yugoslavia sometime between 1970 and 1980. The 650 and 770 models were very popular and they made a lot of them. Supposedly, at first civilians could not even buy them (in Yugoslavia) but only the owners of forestry companies, only a little later the market opened to the general public.
The chainsaw was bought by my grandfather and he used it a lot for many years. Unfortunately, he could not sharpen or maintain it himself, let alone repair it. He just never learned, I don’t know if out of stubbornness or ignorance. He always carried it to a friend for maintenance, but because these visits were quite rare, the saw soon broke down and no longer ignited. Grandpa then bought a new one.
I rediscovered this chainsaw when I was still in my first year of high school. Even then, I started disassemble it in hopes that I would restore it, but my schedule did not allow it. About two years later, I started again and also took the first few videos, but time again overtook me and I had to put the parts back in the box. In the meantime, I was gathering all the necessary spare parts I needed over the internet.
In January of this year, I again had the opportunity to work on this project and decided to finish it. After much work later, she roared again! At first I had a lot of problems with adjusting the engine run, but in the end, after intensive troubleshooting, I managed to get the engine running to perfection.
It’s not perfect yet as I’m still looking for the brake band for the chain brake as well as the labels. I haven't had a chance to try the saw also, because it's not time for logging yet.
Expect a new video soon!
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