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Replaced coil and switch.Still no spark.What else is there to check?
Echo No Start
- Thread starter haileybentley
- Start date
If the coil is good and the air gap is correct and if you got the correct flywheel with the correct triggering magnets and if the flywheel is in time and you have complete circuit integrity, it has to fire; it has no choice. We got laws of physics going on here.
An Echo what?
Nearly all small engine no-starts are a fuel problem, so consider that first. Have you confirmed no spark? Bad plug (shorted inside) is a common ignition problem. The coil is one of the most reliable parts of the whole thing. Disconnecting the small wire from the coil will allow it to run unconditionally, ruling out the kill switch and wiring.
Nearly all small engine no-starts are a fuel problem, so consider that first. Have you confirmed no spark? Bad plug (shorted inside) is a common ignition problem. The coil is one of the most reliable parts of the whole thing. Disconnecting the small wire from the coil will allow it to run unconditionally, ruling out the kill switch and wiring.
That's because it's not susceptible to contamination; it either works or it doesn't work.
Check the fuel lines (and the primer bulb if it has one). A small hole in a line or bulb will prevent enough fuel from being drawn into carb.
If you unhook the kill wire (grounding wire) from the coil do you have spark? If so, I'd check the wiring for the grounding switch. If you still don't have spark with the ground wire unhooked from the coil, I would suspect the coil, or the gap between the coil and the flywheel is not correct.
I think he misdiagnosed the problem . Spring time is usually a fuel problem time .
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Not fuel.Use echo premix.If coil and switch are good-what else is there to check?Gap is good .
Until you can verify there is spark from the coil with the grounding wire unplugged, there is no guarantee the coil is good.
The best way to check for spark is with a dog or cat.
Got spark & fuel? Try shaking it.
Got spark & fuel? Try shaking it.
Remove the spark plug. Attach a known-good spark plug (not the one that you removed) to the wire. Hold the shell of the plug on the cylinder head and pull the starter (much easier with two people). Watch if the plug sparks. If it does, repeat the test with the plug that you removed.
Compassion test? It will need 60-ish psi to run.
Like jeepman said, this problem was just discussed and resolved in a recent BITOG thread:
ECHO Trimmer New Coil - No Start
What echo is this? Trimmer? Chainsaw?
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PB251 blower.
The wire bundle sandwiched between the case halves of the blower is known to short or pinch the wires at times. I would personally disconnect the wires from the coil completely and use a known good (not counterfeit) spark plug and try again. If it sparks, then suspect the wiring or the kill sw.
Also do not get tripped up on new parts. New out of box goes not always mean working out of box. We are in 2023 now with a plethora of counterfiet, junk parts.
Also do not get tripped up on new parts. New out of box goes not always mean working out of box. We are in 2023 now with a plethora of counterfiet, junk parts.
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