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Author Topic: dolmar ps34 fuel issues  (Read 1041 times)

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dolmar ps34 fuel issues
« on: November 16, 2013, 01:59:22 am »
I have a ps34 that just recently started running extremely rich, especially on the low end. I have had it for 2yrs and I  changed the carb gaskets when I got it. Has ran great for 2yrs pulling an 18 " lp bar/chain easily for what I have asked of it. Last time I went to run it it blew very rich at high idle/wot and wouldn't idle. I now have the l screw all in/ idle all in and it still floods out. Do I have a leaky we seal? Pulling the carb on this saw is a pita so any ideas otherwise would be great...
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Re: dolmar ps34 fuel issues
« Reply #1 on: November 16, 2013, 10:22:18 am »
Sounds like the metering valve diaphragm in the carb is either stiff or it hasa bunch of sawdust packed into the vent side of the diaphragm?
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Re: dolmar ps34 fuel issues
« Reply #2 on: November 17, 2013, 12:42:27 am »
That's a possibility.  I haven't taken the time to pull the carb yet. Most saws that I have delt with that had an open metering valve filled the crankcase with fuel....This hasn't. ... The problem will probably be obvious once I pull the carb. Thanks for the ideas
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