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Old 06-21-2013, 07:57 AM   #16
A proud pragmatist.
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Joined: Nov 2009
Location: Hiding off Hwy 6, B.C.
Oddometer: 4,744
How old is the gas? If the stuff from last year, you may want to freshen it up.I don't even try burning anything over 3 months old anymore, stabilized or not I just dump it in the bushcar and start with fresh.

Gas in the cylinders, that's probably better than trying to push "starting fluid" into the combusion chamber. You need to bring the slides up for that and if your "starting fluid" is anything like mine, doesn't have a straw on the nozzle to accuratly deliver it.

Keep a fire extinguisher close by.
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Old 06-21-2013, 12:37 PM   #17
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Joined: Jul 2008
Location: Enid, OK
Oddometer: 402
Sorry, but yes. Fuel delivery failure. At least you know. Aren't you glad you didnt part it out? Something is keeping it from flowing. Pilot jets not as clean as you thought?

You only want to take it apart once more, so make sure its sterile clean. Surgery kind of clean.
Feed your mother from it clean.

Spray out and then blow out every jet and passage.

Then baseline mixture settings, prime position on petcock, and try again.

I've been there and it sucks and I swore they were clean too.
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Old 06-21-2013, 01:02 PM   #18
Dave in Wi
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Location: Madison WI (40 Square Miles Surrounded By Reality)
Oddometer: 2,052
I'd recommend getting a can of spray carb cleaner, the kind with a little plastic straw. Use this to squirt through all the tiny tiny passages to make sure they are clear (after removing the rubber bits of course, the cleaner will not be good for them). Also make sure the floats are installed correctly. Some can be installed upside down,ask me how I know that... They don't work too good like that.
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Old 06-23-2013, 12:27 PM   #19
Tim McKittrick
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Location: Wasilla Alaska
Oddometer: 1,774
I assume you made sure in the above test that gas was actually present in the carbs? I have had at least one occasion a machine that had a small wire mesh filter above the seat for the fuel inlet valve in the body of the carb itself, and this was keeping the floats from filling properly. Cleaning required removal of the seat and mesh.

I would keep on the fuel track if starter fluid is making the motor go, at least until that avenue is exhausted.
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Old 06-23-2013, 02:21 PM   #20
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Joined: Aug 2010
Location: Austin, TX
Oddometer: 3,873
Originally Posted by indr View Post
OMG. It's running. I needed to turn out the idle mixture screw another half turn. funny how these carbs need minor adjustments without which they won't work properly.

It's working!!!! Thank you for everyone's help along the way.
Were you ever using a choke/fuel enrichment knob?
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