Echo Recoil Starter and Pull Cord
A snapped pull cord usually needs only the rope replaced; a starter that spins with no resistance points to the spring or ratchet pawls inside the recoil housing, needing the full assembly. Checking which fault is present first avoids overbuying parts.
A pull cord that snaps or a starter that spins with no resistance are two of the easiest Echo faults to fix - and two of the easiest to fix wrong, because people reach for a whole recoil assembly when the rope on its own would have done the job, or reach for a universal rope when what actually failed is the spring or the ratchet pawls inside the housing. Neither mistake is expensive, but only one of them is quick.
This page separates the two repairs, gives the genuine recoil assembly numbers by model family, and covers what to check before you decide the starter is even the problem.
Cord snapped, or spring gone - two different repairs
Pull the starter grip and watch what happens. If the cord is simply missing or frayed through but the pulley still spins and returns when you turn it by hand, the housing is fine and only the rope needs replacing - a five-minute job with a length of 3 mm diameter starter cord, sold in 5 ft and 10 ft lengths that cover the whole Echo two-stroke range. If instead the grip pulls with no resistance at all, or does not recoil back in, the spring or the ratchet pawls inside the housing have failed, and a cord alone will not fix it - that needs the full recoil starter assembly.
The spring inside a recoil housing is wound under real tension. Do not open the housing to inspect it without controlling the spring first; it can uncoil violently enough to cause a genuine injury. If you are not confident doing that safely, a replacement assembly that bolts on as a unit is the lower-risk repair either way.
The assembly is keyed to the engine, not universal
Recoil starters bolt to the specific shape of the engine shroud, so the assembly is a model-family part, not a one-size-fits-all component. Buying by engine size instead of by model name is the most common way to order the wrong one:
| Machine family | Part | Notes |
|---|---|---|
| SRM-225 / PAS-225 trimmers | A051001312 | Recoil starter assembly, bolts on complete |
| ES-250 / PB-250 / PB-250LN / ES-252 / PB-252 blowers (254 cc) | A051000960 / A051000961 | Different housing shape to the trimmer group - not interchangeable with the SRM-225 assembly |
| PB-403 / PB-610 / PB-60HT / PB-6000 blowers | P021009450 | Sold as a starter recoil kit for this blower family |
| Any of the above, cord only | 3 mm diameter starter rope, 5 ft or 10 ft | Only a fix if the spring and pawls inside are still good |
The trimmer and blower assemblies above are not interchangeable with each other even where the engines are a similar size, because the housing that bolts to the shroud is shaped differently. Match the part to your specific model name, not the displacement class - the same rule that decides carburettor fitment across the range applies here too.
Echo's homeowner chainsaws add a fourth family on top of the three above: the CS-370, CS-400, CS-400F and CS-420ES share their own recoil assembly, A051000982 (replacing the earlier A051000981 / A051000980) - covered with the rest of that saw's parts on the CS-400 chainsaw parts page.
The same model-specific rule catches people on Echo's bigger hedge trimmers too. The HC-2020 takes its own recoil starter, A051003390 - a different number from the A051002791 used on the larger HC-2420, HC-3020, HCS-3020 and HCS-4020, even though all five share the same carburetor.
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Replacing the cord without a fight
Restringing a recoil is fiddly the first time and quick after that. The rope needs to seat fully in the pulley groove and the knot at the grip end needs to sit flush, or it will jam on the return stroke rather than wind in cleanly. Feed the new cord through the housing and grip with the pulley pre-loaded by a turn or two of spring tension - most manuals call for two to three turns before tying off - so the grip sits snug against the housing rather than dangling loose when the engine is at rest. A grip that sits loose after a cord change usually means the pulley was not pre-tensioned enough, not that the rope is the wrong length.
When it is not the starter at all
A recoil fault and an engine fault look similar from the outside but are not related. If the cord pulls, the engine turns over, and it still will not catch, the starter is doing its job and the problem is fuel, filter, spark or carburettor - work through those in order on the Echo won't start page rather than touching the recoil housing. The starter is only the suspect when the pull itself feels wrong: no resistance, no return, or a rope that will not come out at all. Stale fuel and a blocked filter cause far more no-starts than a bad recoil ever does, so rule those out first with a fresh 50:1 mix from the 2-stroke oil page before assuming the starter needs work.
Frequently Asked Questions
What is the part number for the Echo SRM-225 recoil starter?
Can I just replace the pull cord instead of the whole recoil starter?
Is the Echo trimmer recoil starter the same as the blower recoil starter?
Why does my Echo pull cord not recoil back in?
The pull cord works fine but my Echo still won't start - what's wrong?
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