Chainsaw Repair

  My first Partner saw ( which is also my first chainsaw ) is a 5000 that's all it says I am sure its not a 5000+ 

I have had this saw about 3 weeks now , I found it in a charity shop being sold for spares or repair, it had a few bolts missing from the casing's and looked like it had been neglected by it's previous owner , It only cost me $10 a bargain .

An hour or 2 cleaning and finding new bolts she's all good  runs vary well and starts good and I have given it a vary good workout doing about 5meters of Manuka (a New Zealand hardwood ) and it hasn't missed a beat.

Not a vary common saw over here and i hadn't heard of it before the other week, I am presuming it was made around 1980 from what i have read here and on chainsaw collectors.