You should choose and replace your string trimmer line according to your spool’s recommended size and shape and combine that with regular air filter and oil maintenance on your small engine so your lawn stays healthier and your equipment runs longer with fewer breakdowns.
Most people assume that mowing alone is enough or that any cheap trimmer line will do, but the real difference between a mediocre yard and a well manicured lawn comes from clean edging around fences, trees and beds plus a trimmer that cuts efficiently instead of snapping line or spraying plastic all over the yard.
In this article, you will see why matching the correct line diameter to your spool matters, how different line profiles like multi sided shapes can deliver a faster, cleaner cut, and why investing in higher quality line reduces breakage.
You will also learn basic safety habits such as wearing eye protection and keeping children and pets far from flying debris, along with small engine essentials like checking and cleaning or replacing air filters, monitoring oil level and color, and changing oil at sensible hour intervals so your trimmer and other outdoor power tools stay ready for a long, demanding season.
String Trimmer Spool Specifications
String trimmers have spools designed to hold line of a specific size. The first step is purchase a replacement line with the correct diameter size, which varies from 0.065 to .125 inches. Always follow the manufacturer’s listed requirements. There also are many different variations in shapes for each size of line. Lines with three, four or six-sided profiles provide a faster, cleaner and more professional cut than the standard round shape.
The quality of replacement line also varies greatly. Cheap line breaks easily and could leave you with scattered fragments of plastic throughout your yard. Tougher, more durable line will prevent potential breakage.
Tip of the month
As with any outdoor power equipment, string trimmers can be dangerous. Pebbles, dust and debris can be catapulted at surprising distances so protective eye-wear is wise. Also, warn bystanders, especially children and pets, to stay a great distance away while the trimmer is in use.
Small engines
Since spring arrived early for many of us, your small engine may be working harder and longer this season.
To keep it running well, remember to check the air filter every 25 hours or so (varies with model). This prevents dust and grass from sneaking into the engine and causing trouble. Paper air filters must be replaced. Foam filters may be cleaned with hot water and dish detergent. Be sure that the filter is completely dry before saturating with engine oil and reinstalling into the engine. Note that this process may vary so it’s important to consult the owner’s manual.
Check the oil level frequently, at least every eight hours of use, to prevent engine breakdowns. Fresh oil is golden in color. Old oil darkens. At minimum, the oil should be changed every 50 hours of use but some models and usage factors may increase the frequency needs.