20 Most Recent Echo 2-Cycle 28.1 cc Straight Shaft Gas Trimmer SRM-280UC Questions & Answers

no not fly wheel maybe coil if not sparking check switch fist is on for sure or bad plug coil expessive try squrying some starting fluid in the carb check compression has to be above 90lb to start check and see if carbon has block exhaust port do all this first

If it doesn't turn over when you pull the rope it could be in the starter assembly or the flywheel where the starter pawls engage it. If it turns over then you need to check for fuel, spark, air and compression. If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1

Sounds like there is something either broken,stuck or missing in the head.

Here's some sites... https://www.google.com/search?q=Echo+ES-250+leaf+blower+runs+at+half+power+but+revs+up+to+full+power+when+you+place+your+hand+over+the+end+of+the+blower+cone&newwindow=1&sxsrf=APwXEdfuUI7jrRK7a7diriTmYslXiuPC6A%3A1685666387711&source=hp&ei=Uzp5ZKLAKYLDkPIP0petsAw&iflsig=AOEireoAAAAAZHlIY9iuRmYgev7HEyg8_CovzkQGuk_0&ved=0ahUKEwjitf3RrKP_AhWCIUQIHdJLC8YQ4dUDCAo&uact=5&oq=Echo+ES-250+leaf+blower+runs+at+half+power+but+revs+up+to+full+power+when+you+place+your+hand+over+the+end+of+the+blower+cone&gs_lcp=Cgdnd3Mtd2l6EANQAFgAYABoAHAAeACAAQCIAQCSAQCYAQCgAQKgAQE&sclient=gws-wiz

Recheck the line replacement. The twin line feeds are tricky. The videos should help. https://www.google.com/search?q=echo+gas+2+line+string+trimmer+line+replacement

check your muffler screen for being plugged, this will cause it to not accelerate2StrokeJim

Search Results

Echo String Timmer/Weed Eater Model SRM-225 Won't ...

? 2:50 www.youtube.com/watch?v=uFN82KDj3a8 Nov 1, 2013 - Uploaded by mountainbikekayak So this is Part I of showing it want start but adding prime it wants to. Part II will show replacing the fuel filter did not fix it and then replacing the ...

Sometimes the spring may need extending as over time the bumping makes the spring lose its push tension causing no line advance

small engine repair in your area or online

is it possible you have wound string backwards? this is the usual case for string advancing string .

I know this is a very old post, but figured I'd answer it so any others with this issue can have the fix. With Echo trimmers not revving to speed although they start with no problem, the issue is usually the muffler screen. It becomes plugged with carbon because of improperly mixed 2 stroke fuel. Remove the screen from the muffler and burn off the carbon with a propane torch, or wire brush it off. Once cleaned engine should rev to speed.

Classic sign of coil failure. Run it until it cuts off then test the coil. Most likely 0 resistance, complete open circuit. This is common, coil can't be repaired, only replaced. It is a simple fix, and echo trimmers I believe are worth the cost of coil to repair. Plenty of youtube videos on how to do this repair.

This appears to be a good news problem. There is an easy fix/work around! Consumer reports found the same problem that you have discovered. Holding down the check battery switch allows the unit to operate. Read the link around the sixth paragraph the story is told. Echo Trimmer Can Be Tricky to Start "Our testers discovered the fix by chance. Pressing the check battery button, a last-ditch attempt to get the trimmer working, made all the difference. While this button ordinarily indicates the battery's charge status, in this case it also served to keep the battery from switching into protection mode and cutting off power to the motor. The next time you fully charge the battery, however, the problem can reoccur." Hope this has helped?

See if the video here helps https://www.google.com/search?q=Echo+CS-490+chainsaw+replace+throttle+lock ..

Set proper air gap. See following video (3:15).

https://youtu.be/05JYQ4s2Y_w

Air fuel and gas... It needs all of these Are the crankshaft seals any good ??? This causes an air leak, leading to the engine not being able to draw in the air/fuel mixture Check this by spraying carb cleaner into carb. Does it start ??? Did you check for spark ??? Did you set the coil gap ??? .010 Did you check compression ??? Someone mentioned 100psi. Close but most wont run under 90psi. Others need 120psi. Echo's will run under 90psi but not much lower Did you remove the muffler and check the exhaust side of the piston ??? Scoring will keep it from running but I have seen them run, albeit poorly but still run with major scoring. Is the spark arrestor still installed ??? Is it plugged ??? Just some of the tests I perform since I am an Echo/Shindaiwa Tech

The most common cause is a wood chip stuck in the inlet or exhaust valve. Check the compression.

50:1

Check the fuel lines. Make sure the pickup tube (line with the fuel filter) has not fractured.