I'm Stuck!! I have an old but in very good condition chainsaw. Its a Craftsmen

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Old 09-11-13, 01:39 PM
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I'm Stuck!! I have an old but in very good condition chainsaw. Its a Craftsmen

HI I have an old craftsman chainsaw. It has a Welbro carb that seems to be everywhere. I couldn't find any numbers on it. I totally rebuilt it replacing the diaphragm, needle valve, and flapper valves on the other side, cleaning and spraying out all the holes as I went. I also replaced the fuel filter, fuel lines and primer ball. When I first looked at it the fuel lines were completely broken into small pieces. I'm not sure if I put the primer line and fuel line on the carb on the right brass tubes as I had no reference when I started. My exneighbor's son last "used" it some years ago and much to my dismay the adjusting screws were tightened all the way closed so I also don't know where they should be set. I read one post to set them at 1 1/2 for the low and 2 for the high. when I got it back together it would fir but not run. Now it does neither. Any help out there?
 
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Old 09-11-13, 02:32 PM
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John welcome to the forums. I have started a thread for you. Perhaps this is your first visit to any forum and you weren't aware but in the future please start your own thread and never post a question to a sticky as you did.
 
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Old 09-11-13, 03:03 PM
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Old 09-11-13, 08:34 PM
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The line from the tank with the filter goes to the fitting closest to the center of the carb. The, a short line goes from the other fitting to the suction side of the primer bulb. Then, a line goes from the pressure side of the primer to the fuel tank. Make sure this is how you have it before checking other stuff.
 
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Old 09-13-13, 09:19 AM
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Thank you very much,, For some reason the fuel line is blocked so the primer is just pressurizing the fuel tank. I am going to take it apart once again and see what I can find
 
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Old 09-13-13, 01:39 PM
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Your right this is my first try at forums. thank you for the patience.
 
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Old 09-13-13, 02:14 PM
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I had a blockage in the brass hole where the needle valve is in the carb. Got that cleared. still won't start. When I pump the primer bulb I get fuel coming out of the carb. But isn't the primer bulb supposed to have a little gas in it also? Do I have another hole clogged up somewhere?
 
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Old 09-13-13, 05:53 PM
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If you are getting gas coming out the throat of the carb when you prime it, something is wrong. It's not supposed to do that. The lines are connected wrong or a check valve isn't working or something along those lines.
 
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