Dolmar 120si

[Mingara]

Hi all

this Site is a great port for information.

well I have had a first great cut with my Domar 120si once I had the chain sharpened proffesionally. My attempt to sharpen it was lously and probably dangerous. But once it was sharpened I took the advice of fellow ArboristSite members and was really careful, and easily cut a heap of logs ready for splitting.

I need to ask a question or two though. My saw is labelled a Dolmar 120si and I know that it is the equivalent to the Makita 6800i (from another thread) but I have also read that it is a Sachs Dolmar. I find it a little confusing so can someone advise where the Sachs and Makita came into the equation?

I also want to clarify what fuel mix to use. All of my other two stroke petrol engines require 25:1 mix but I have read on this Site that the Dolmar should use 32:1 or 40:1. Any advice on this would help.

The last question I have is about kickback. I can understand how it happens but how severe is the kickback and what can I do, apart from not touching anything with the point of the saw, to minimise the risk.

 

[sedanman]

In order of importance, Kickback can kill you in less than a blink of an eye. The force can be extremely violent. Your chain may be spinning at 55 to 65 mile per hour or near 100 kilometers per hour. There is a lot of stored energy here, a kickback cause tranfer of the energy into rotating the saw on its center of gravity. Pay very dear attention to potential kickback situations.
Sachs/Makita/Dolmar. It was origially just Dolmar then they hooked up with Sachs. Sachs/Dolmar made some real good saws but eventually had financial problems and were going the way of the dodo bird. Makita bought what was left and revived Dolmar. Many Sachs/Dolmar models made the transition, most were re-named. AS fortune smiled on Makita/Dolmar new models were introduced and things are looking up again. I have oversimplified this and left out some detail. SawMan or Dolmar-Tech-Rep can fill in the blanks.

 

[ray benson]

Checked an Intertec chainsaw manual and for your saw it recommends 40/1
if Sachs-Dolmar oil is used. Otherwise use a good quality oil designed for air cooled two-stroke engines at 25/1.
Don't see a problem using the new oils that are ISO-L-EGD+ rated at either 32/1 or 40/1.