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Post by ronaldt on Apr 5, 2020 15:15:24 GMT -5
I started tinkering with an old EZ that I acquired a while back. It has surprisely good compression (150lbs). It also seems to have good spark. Win win right? I dribbled a few drops of premix in the cylinder and could not so much as a pop. Could it be possible that it's not sparking under compression or am I missing something else?
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Post by sweepleader on Apr 5, 2020 16:29:38 GMT -5
Change the plug and test the spark. Successfully testing an old plug, or even a new one, in the open air does not mean the same plug will spark under compression.
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Post by ronaldt on Apr 5, 2020 16:37:53 GMT -5
Change the plug and test the spark. Successfully testing an old plug, or even a new one, in the open air does not mean the same plug will spark under compression. I swapped a plug from a similar model running saw with the same luck. |
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Post by onlyhomelites on Apr 5, 2020 21:00:43 GMT -5
Either the spark isn't as good as it seems (can happen) or the flywheel key is sheared and the timing is off. I'm guessing it has a week condenser.
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Post by ronaldt on Apr 5, 2020 21:16:40 GMT -5
Either the spark isn't as good as it seems (can happen) or the flywheel key is sheared and the timing is off. I'm guessing it has a week condenser. Ok thanks! Are there new condensers available if necessary? One other thing I forgot to mention, when I had the plug out I noticed what looked like a small hole in the top of the piston. I thought it seemed odd but kinda blew it off since the compression is pretty good. |
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Post by rowdy235 on Apr 5, 2020 21:26:24 GMT -5
I believe NOS condensers are still available through some sources, chainsawlady may have a few. I've often wondered if a modern capacitor could be adapted to work but haven't tried yet.
Doubtful there's a hole in your piston if compression is good, maybe post up some photos
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Post by Clasec on Apr 5, 2020 21:31:14 GMT -5
The hole could be for the pin that locates the ring.
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