Questions and Answers for ECHO 21.2 cc Gas 2-Stroke Straight Shaft String Trimmer

A:  Hello! Thank you for your inquiry. The SRM-225 Model comes with the Speed Feed 400 Trimmer head - Accepts up to 20' of .095" - .105" line diameter.

A:  Speed feed 400 head accepts .080 in. - .095 in. diameter line

A:  Let's say you are starting with a 32-ounce container of a 40:1 fuel mixture. 32 ounces divided by 41 parts is .78 ounces. So you would have to add 10 more parts of .78 ounces or about 7.8 ounces of gasoline to the 32-ounce container to fix it. Now, 50:1

A:  You probably could, but the engine is set for 50:1 fuel mixture. It may not run as well since the engine is set for 50:1 and may have excessive carbon build up. Also could void warranty. I wouldn't use Trufuel.

A:  Can't I use 105 line in echo trimmer

A:  No you cannot this is a single straight shaft string trimmer if you want to use a different attachments and still stick with the echo brand you would need the pas system which is the base tube with a trigger assembly and the 21.2 cc engine. It takes different attachments such as hedge trimmers, edger, and string trimmer. I hope this helps 🙂

A:  You shouldn't continuously run a 2-stroke engine a full throttle. But, to better answer your question, it's more than adequate to do the average consumer's full yard.

A:  You shouldn't continuously run a 2-stroke engine a full throttle. But, to better answer your question, it's more than adequate to do the average consumer's full yard.

A:  Hi Tomm! The wide open throttle speed is 8,000-10,000 RPM. The idle speed is 2,400-3,200 RPM.

A:  Hi Rich! The 2-stroke ECHO products require a 50:1 fuel and oil mixture.

A:  13”

A:  Interesting, the item detail description states "17 in. cutting swath"

A:  Hi Leon! Thank you for your inquiry. The SRM-225 features a 13" cutting swath.

A:  Hi Albert! Thank you for your inquiry. The Speed Feed trimmer head is very easy to load line into. To watch a short demo video, please visit the following link, https://www.youtube.com/watch?v=kqO3kKZttWc.

A:  you will find the directions on pages 40-41, but you cut up to about 20ft of line, asumming the head is empty you twist it until you can see clear through the eyelets and feed the cable till its even on both sides and hold the head and twist to wind..

A:  It is absolutely impossible to rewind. My original one came all knotted up inside and would not feed. The instructions are totally inadequate. If you are out in the field you should not have to resort to YouTube to work a piece of equipment. Returning

A:  Hi Dennis! Thank you for your inquiry. All ECHO products can be operated on its side or at any angle. ECHO utilizes all-position diaphragm carburetors with every 2-stroke engine to provide smooth operation at any angle.

A:  yes, but not for an extended amount of time.

A:  It doesn't have a battery, it's Gas powered.

A:  Hi Sergio! Thank you for your inquiry. This is not a battery powered product. On average, a full tank will run between 30-45 minutes.