Trimmer model: Sears 358.796121
Engine: 4 cycle B&S model 21032, Type: 0112 E1, Code: 0407212A
Have tried EVERYTHING to get this to start, or at least sputter:
Nice
blue spark when cranking, spark plug when installed in another engine
runs fine, so it's not the plug. Tried new plug anyway, does nothing,
not even a sputter.
Starting fluid/gas into carb intake does nothing, not even a sputter( rebuilt carb while it was out).
Removed carb, starting fluid/gas directly into intake does nothing, not even a sputter.
Starting fluid/gas directly into sparkplug hole does nothing, you guessed it, not even a sputter.
I have ignition, evidenced by the spark, I have fuel(fresh) and when that didn't work, I tried starting fluid.
Looked into camshaft cover, can see tappets and valve stems following cam up and down, so its not a hanging valve.
Have good compression.
Flywheel key is an integral part of the flywheel and is not damaged.
Now what to do?
It is super clean, so it can't have been used much, guy said it was running one day, then just stopped.
Timing gears are plastic and they strip, you may have compression but not enough.
Could be a faulty kill switch not allowing it to start, sounds like you covered all the things I would check.
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Yes, it was a stripped camshaft gear,made out of plastic. Will NEVER buy these types of engines again, will stick with 2-cycle.
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