Look on the Gas cap of your weedeater. It should tell you the gas to oil ratio. If its not there try looking in the manual or online.
40to1
50:1
I purchased my Toro weedeater in 2007. It uses a 50:1 gas/oil ratio.
cracked gas line, cracked bulb, or weedeater out of gas
Poulan Pro PPBP300 40:1
A 61 year old Poulan that still runs?? Wow! Understandably, you would be facing a dead end trying to find an owners manual for that one (though you could try writing Poulan direct - it can't hurt), but back in 1950, the majority of two-stroke engines were still using a 16 to 1 gas/oil ratio. It will smoke like crazy, but you are guaranteed that is safe, at any rate.
Lubricant typeHusqvarna or equiv. at 50:1 Right off the web site I use husky oil
From Poulan website: The fuel-oil mixture ratio for all Poulan two-cycle products is 40:1. You can obtain this ratio by mixing 3.2 oz. of oil with one gallon of regular gas. If you have other brands of equipment that require different fuel/oil ratios and you don't want to mix separate fuel cans, you should use the lowest numerical ratio. For example, if you have products requiring 40:1, 50:1, and 32:1 ratios you should use the 32:1 ratio for all products. This may cause slight smoke increase in the exhaust in the 40:1 and 50:1 products due to more oil in the fuel, but it won't damage either of the engines.
It depends on the brand of trimmer you bought. Stihl, Echo, Husqvarna use 50:1, or 1 gallon of GAS to 2.6oz of 2-stroke oil Weed Eater, Poulan, and Poulan Pro use 40:1, or 1 gallon of GAS to 3.2oz of 2-stroke oil Ryobi's use 32:1, or 1 gallon of GAS to 4oz of 2-stroke oil
.025:1, gas to oil
All Stihl products use a 50:1 mixture