We ran a String TRIMMER at every LINE LENGTH (Science Experiment)!

String Trimmer Guard ON or OFF? We ran the trimmer at different line lengths, without the guard, to see what it exactly does to your trimmer. With a heat gun, a measuring tape, and a tachometer, we aim to bust some myths!

You can find tons of content on this debate. However, at Main Street Mower we did not just want to give you our thoughts. We want to give you the numbers behind the science of it. So tune into this crazy experiment video, where STU and Chip attempt to BURN DOWN a TRIMMER engine.

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VIDEO CHAPTERS

00:00 Video Introduction
00:48 Experiment Overview
03:12 Running OEM line Length (5.75 in.)
04:16 Running Line without Guard (Upto 12.75 in.)
06:22 Results/Numbers
07:53 Reading RPM at different line lengths
09:55 Engine Head Temp at different lengths
12:26 Muffler Temp at different lengths
13:48 Gearbox Temp at different lengths
15:43 Line Tip Speed at different lengths
16:50 What we see in the Mower Shop
19:46 Worn Out Clutch Assembly and how they work
24:09 Conclusion / Final Thoughts
25:43 Thank you.

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