SOURCE: Homelite XL-76
The fuel ratio is determined by the oil and not the machine. Not all oil
is the same. When a manufacturer recommends a fuel ratio, they are
trying to direct you to the oil that they offer for sale. Over the years 2
cycle oil has been offered in 16:1, 32:1, 40:1 and 50:1 . Unfortunately for the
user it is easy to get confused when selecting oil. It is not difficult if you
just think about it. There are two major differences in 2-cycle engines. There are water cooled and
there are air cooled engines and the oils are entirely different. Water cooled
(outboard) engines run at much lower temperatures and at much lower RPM's. It is
necessary for outboard oils to burn during the combustion cycle. In this
situation the oil turns to smoke so that the oil is not deposited in or on the
water. Air cooled engines run at a much higher temperature and must not be used
with outboard oils. In an air cooled engine the oil should leave the muffler in
liquid form. If the oil turns to smoke it is not able to lubricate the engine
and a very undesirable
carbon deposit is left behind leading to engine failure or stuck piston rings.
Since a top quality mixing oil will cost $12 or more for a six pack
(that comes out to well over $100 a gallon of oil) there is little wonder that
so many companies want a piece of that pie. Cheap oils no bargain even if it is
free. If the oil says it is for outboards, lawn mowers, string trimmers, and
chain saws, they are telling you that they know nothing about 2 cycle engines
and only want to take your money.
You should choose an oil whose brand is
that of an engine manufacturer. Obviously these companies are not in the oil
business but they want to make sure that they do not cause warranty claims from
an inferior oil. The life of you engine is dependent on choosing a good grade
of oil. You should pick an oil that you trust and that you can purchase on a
consistent basis. Unlike
gasoline, oil does not deteriorate with age. It is better to buy enough to last
you a year or two than it is to change brands every time you run out.
SOURCE: chainsaw gas mixture ratio
An XL from that time frame recommends 32:1 here:
http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/d4b1071a456ca76c88256cd6001cc24c?OpenDocument
If my saw it would be adjusted for and operate on 50:1.
1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH
Lou
SOURCE: oil mix ratio for homelite chainsaw
Current models recommend 50:1
1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil. Once adjusted for this mix your saw will start easier, take longer to carbon foul, and is better for your grandchildren, regardless of what your manual says.
If you have more questions or need additional help please reply below and I will get back to you. Good Luck. HTH
Lou
Thank You for using FixYa.
Oil Mix Ratio:
Starting in the early to mid 90s Dolmar, Echo, efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl and Tanaka all started recommending 50:1
McCulloch, Poulan & Wen recommend 40:1
Chinese chainsaws recommend 25:1.
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