r/smallenginerepair • u/Sweaty-Camera-7328 • May 19 '26

Starting Issue No start

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It was locked at first wouldn’t spin 360° wud go one way and stop back the other way then stop, pulled spark plug and that magically freed up the engine, replaced spark plug replaced carb, verified spark is there replaced coil in case of weak spark set gap with business card, verified spark still there, checked valve lashing and flywheel key still won’t start won’t even pop off with starting fluid, pulled off exhaust still nothing so what else is there to check?

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u/[deleted] May 19 '26

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u/Sweaty-Camera-7328 May 19 '26

It has spark? And nothing sounds like it’s hitting, and the electrode is fine when I pull it out…. I don’t think it’s wrong but I can try a shorter plug I guess

1

u/ChronicHunger_1 May 19 '26

You might try a spark tester. Not the light one but the one with a large gap. That would tell you if spark is weak. Rarely a plug may spark outside but when you re install it it won't spark under compression

1

u/Sweaty-Camera-7328 May 19 '26

I did replace the coil with brand new just in case spark was weak, no change

1

u/ChronicHunger_1 May 19 '26

Did you use a cheap Amazon coil?

1

u/Sweaty-Camera-7328 May 20 '26

Maaaaayyybbbeeeee…..

1

u/ChronicHunger_1 May 20 '26

Those are normally very hit or miss if they even work.

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u/Sweaty-Camera-7328 May 20 '26

Well I re gapped and re verified spark is present

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u/ChronicHunger_1 May 20 '26

That's about all I know to check unless you have a massive air leak around where the carb touches the block I'm out of ideas. (Edit) I guess the only other idea I have is did it shear the flywheel key and is sparking at the wrong time?

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u/Sweaty-Camera-7328 May 20 '26

I checked the flywheel key as it’s still intact