Echo SRM-1501 string trimmer not starting
mustangm
12 years ago
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This is the first time in 15 years that I have not been able to get this started. Given its age, I decided to replace the carb gaskets, fuel line, fuel filter and spark plug. It has a Zama 2 cycle carb. The old gaskets were very stiff, and replacement was very easy. After refueling with fresh fuel, I primed, choked it and gave it a pull. On the second pull it popped. I took the choke off and pulled and pulled and pulled. Tried choking it again, but nothing. Just that one pop.
I tested the spark plug in the dark and it fires bright blue. I tested compression: 90 psi after 2 pulls (I think this is ok). And I believe fuel is making it into the engine. After 3-4 pulls I look down the carb and can see wet fuel. I took the plug out and pulled several times. I am not sure if fuel is making it to the combustion chamber as the plug does not seem wet. I removed the muffler and do not see an over-abundance of carbon - seems normal. I also took the carb off again and the piece between the carb and the engine. I pulled the cord until the piston was at the top. At this point I could see under the piston and it was very wet. I tipped the trimmer and quite a bit of fuel poured out.
Any ideas what is going on? Thanks as always for the help.
ls3c6
mustangmOriginal Author
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mustangmOriginal Author
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