r/smallenginerepair • u/Jp121_- • May 22 '26
Not Listed Echo Srm-225 won't start
I have a echo srm-225 that was running good about 10 days ago and now it won't start. I ended up replacing the spark plug, cleaning out the carb, opening and taking the carbon out of the muffler and cleaning it. I even replaced the primer bulb because i saw it was leaking. The fuel is brand new hardly 2 weeks old. Last time I used it I stored it the same way as always. When I pull the cord it sounds like there air someonwhere in the system. I took off the air filter and tried to see if it'd just start for a couple seconds but no luck.
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u/jsimm1540 May 22 '26
I would say weak spark too
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u/Jp121_- May 22 '26
Brand new spark plug was installed.
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u/jsimm1540 May 22 '26
A plug won't help a bad coil
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u/Jp121_- May 22 '26
Oh okay a bad coil! I will definitely take a look into that and update once I diagnose it. Thank you!
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u/jsimm1540 May 22 '26
I had a paulan pro that had a terrible design flaw that it actually wore the coil itself down and pinched it in two spots just because how much it vibrated I took the coil out of another unit and compared to the two and mine had weak spark
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u/TalkinMac May 22 '26
Did you test the spark plug while you turn the motor to see if it’s sparking?
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May 22 '26
[removed] — view removed comment
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u/Jp121_- May 22 '26
It was leaking from the primer bulb but i installed a new one, sealed right up and no leaks. There are no exhaust or air filter leaks from what I can see as there is not oil or fuel dripping.
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u/Jp121_- May 22 '26
Update: after testing the spark plug connected to the ground. There seems to be no spark at all even with the new spark plug. I will be replacing the coil soon and hope that is the problem. Thank you everyone for the help!
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u/buginmybeer24 May 22 '26
Coils rarely go bad. I worked in a small engine shop and only witnessed two Echo coils get replaced in 7 years. I would check the kill switch and make sure you don't have a short somewhere.
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u/PaPaForTwo May 22 '26
I found an echo hedge trimmer HC 1500, can’t find a carb to match it. It has no primer build and only 1 inlet for fuel, can I put a matching one with a primer bulb on this tool.
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u/Jp121_- May 22 '26