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- #141
The STIHL 50:1 Mix can be used in the older machines. Even the older ones that ran 25:1. The lubricating properties of the solvents in the mix oil have improved dramatically in the last 30 years.
The RPM is with the Bar and Chain on the saw. I recommend you adjust the saw so it runs well and then check it with the tachometer. Please do not use the tachometer and adjust the carb until you get to 10,000. You can, break the reed, knock out the lower rod bearings or seize you freshly rebuilt saw.
The RPM is with the Bar and Chain on the saw. I recommend you adjust the saw so it runs well and then check it with the tachometer. Please do not use the tachometer and adjust the carb until you get to 10,000. You can, break the reed, knock out the lower rod bearings or seize you freshly rebuilt saw.