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2023/08/07 20:29:20
Paulywally

Echo PB-9010T bad fly wheel?

I recently picked up an Echo PB-9010T backpack blower at a garage sale for a steal. 100 bucks.

I got it home and of course it didn't start but it was getting fuel which was surprising.

I diagnosed no spark, disconnected kill switch wire, still no spark.

I ordered up a new coil, it came in and I installed it, gapping it tight with a business card.

Still no spark. I tried various plugs, removed the spark plug boot and held the bare primary wire close to the aluminum block, nothing. I ran a jumper ground wire from the frame of the coil to the engine block, still nothing. I tried various different coil gaps. Nothing. I put the old coil back on and got the faintest of spark with the bare primary wire close to the block, I assume not enough to jump the gap of a spark plug.

I have never encountered it before but my mind is going to the flywheel. It did grab a screwdriver, but I wasn't paying attention to how far away it was. If the flywheel key was sheared it would still have spark just not at the correct timing.

I am kind of stumped and need some ideas.

On a side note does anyone know how, me not being the original purchaser works with ECHO warranty? I see a date where the model and serial number is of June 2021.

Thank you for any help or advice you can give.
3 comments Leave a comment
SRTsFZ6
Re the new coil, is it OEM or aftermarket?
 
Just because it's new doesn't mean it works (especially a knock off). 
 
Magnet failure is extremely rare (un-less certain Kohlers which the magnets come loose from the flywheel.)
 
.
2023/08/07 21:52:47
Paulywally
It is an OEM coil.

I agree, I have never seen magnets fail in a flywheel before, and everything I've ever read says it doesn't happen almost ever.

I am just having trouble swallowing the idea of buying another 100 dollar coil.

I am going to call my local Echo dealer this morning. I am hoping it is still under warranty, which is the easy way out but doesn't require me to buy another 100 dollar coil.

Thanks for the help.
2023/08/08 07:32:59
SRTsFZ6
Perhaps they have a known, good coil, they can lend you.  
 
That or test it for you...
2023/08/08 08:00:56

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